Showing posts with label Beneficials. Show all posts
Showing posts with label Beneficials. Show all posts

Friday, 3 July 2020

John Frederick Doane (14 April 1930 – 21 May 2020)

In memory 

John Frederick Doane quietly passed away on May 21, 2020, in his home in Saskatoon, at the age of 90 years.  Having grown up on a farm north of Toronto, John developed an interest in entomology at a young age, and began collecting insect specimens common to southern Ontario.  John received his B.S.A. in 1954 from the Ontario Agricultural College, now the University of Guelph; specializing in entomology.  Pursuing these interests, John immediately enrolled in graduate studies at the University of Wisconsin, completing both his M.Sc. (1956) and his Ph.D. (1958).  Shortly after graduating, he began a research career in agricultural entomology, receiving an Research Scientist position at the Agriculture Canada Research Station in Saskatoon that same year.  Interestingly, this cadre of  Research Scientists at the Centre still had a significant number of first generation entomologists appointed to the Dominion Entomological Laboratory at Saskatoon.

John Frederick Doane (14 April 1930 - 21 May 2020)
Photo taken July 2019

John adapted very quickly to the agricultural industry on the prairies, and his research over the years has significantly contributed to insect population monitoring.  His first research assignment was to assess and describe the ecology and behaviour of wireworms, a major pest of field crops at the time.  John began by investigating the ovipositional behaviour and fecundity of adults, as well as the effects of soil moisture and temperature on wireworm egg survival.  His studies, related to the response of wireworm larvae to carbon dioxide levels, contributed to the development of trapping and monitoring tools for larval populations.  In the early 1980s, Saskatchewan experienced an unexpected outbreak of wheat midge (Sitodiplosis mosellana).  John was asked to assemble a multidisciplinary research team with the objectives to determine the biology and ecology of this new threat to wheat production in the prairies.  His research promptly yielded important contributions: (i) the discovery of a significant biological control insect (Macroglenes penetrans), and (ii) the development of a sound wheat midge population monitoring protocol.  Through the successful implementation of conservation techniques, M. penetrans now controls an average of >30% of the wheat midge across Saskatchewan annually.  A study in the 1990s, showed that the dollar value of the parasitoid to the agriculture industry over the 10 years, was in excess of $248.3 million (equivalent of $422.5 million today).  The second highlight, a soil extraction protocol for wheat midge larval cocoons, provided a unique population density and distribution monitoring tool for both the pest wheat midge and it’s biological control agent.  This tool is still utilized today to forecast the risk to wheat production; the survey results being provided as mapped forecasts for producers on an annual basis.  Given the success of biological control agent (M. penetrans), John collaborated with international colleagues at CABI in Switzerland, to assess the viability of importing a second biocontrol agent for control of wheat midge.  This resulted in the successful introduction and establishment of Platygaster tuberosula.  In the late 1980s, wheat production south of the USA border was seriously threatened by Russian wheat aphid (Diuraphis noxia).  In response to this new threat, John manufactured and installed a series of suction traps as an early-warning system, from southern to northern Saskatchewan.  The 30ft high traps were designed to collect migratory aphid adults being transported north on wind currents from infestations in the USA.  The results indicated that southwest SK was occasionally at low risk, but the threat was significantly less than south of the border.

John was appointed Head of the Integrated Pest Management Section of the Saskatoon Research Station in 1982, and the Head of the amalgamated Cereals Protection Section in 1989.  John served as E.S.S. President in 1967 and 1978, and served a term as a member of the E.S.C.  Governing Board.  He will also be remembered as a founding  member of the national AAFC Biological Control Working Group, a group that is still very active in 2020.  He retired in 1993, taking an extended self-guided tour of south east Asia, including India and Malaysia.  Upon his return, John remained active in retirement, co-authoring several scientific articles, most recently a bio-climate modelling paper on wheat midge in 2020.

- Submitted by O. Olfert

Field Heroes

The Field Heroes campaign continues to raise awareness of the role of beneficial insects in western Canadian crops. Check the recently updated Field Heroes website for scouting guides, downloadable posters, and videos. Learn about these important organisms at work in your fields!  

Real Agriculture went live with a weekly Pest and Predators podcast series!
• Access Episode 1 - Do you know your field heroes?
• Access Episode 2 - An inside look at the Prairie Pest Monitoring Network.
• Access Episode 3 - How much can one wasp save you?
• NEW- Access Episode 4 - Eat and be eaten — grasshoppers as pests and food

Access ALL the Field Heroes links here and be sure to follow @FieldHeroes!


Thursday, 25 June 2020

Field Heroes

The Field Heroes campaign continues to raise awareness of the role of beneficial insects in western Canadian crops. Check the recently updated Field Heroes website for scouting guides, downloadable posters, and videos. Learn about these important organisms at work in your fields!  

Real Agriculture went live with a weekly Pest and Predators podcast series!
• Access Episode 1 - Do you know your field heroes?
• Access Episode 2 - An inside look at the Prairie Pest Monitoring Network.
• Access Episode 3 - How much can one wasp save you?
NEW- Access Episode 4 - Eat and be eaten — grasshoppers as pests and food

Access ALL the Field Heroes links here and be sure to follow @FieldHeroes!


Friday, 19 June 2020

Field Heroes

The Field Heroes campaign continues to raise awareness of the role of beneficial insects in western Canadian crops. Check the recently updated Field Heroes website for scouting guides, downloadable posters, and videos. Learn about these important organisms at work in your fields!  

Real Agriculture went live with a weekly Pest and Predators podcast series!
• Access Episode 1 - Do you know your field heroes?
• Access Episode 2 - An inside look at the Prairie Pest Monitoring Network.
• Access Episode 3 - How much can one wasp save you?

Access ALL the Field Heroes links here and be sure to follow @FieldHeroes!



Friday, 12 June 2020

Field Heroes

The Field Heroes campaign continues to raise awareness of the role of beneficial insects in western Canadian crops. Check the recently updated Field Heroes website for scouting guides, downloadable posters, and videos. Learn about these important organisms at work in your fields!  

Real Agriculture went live with a weekly Pest and Predators podcast series!
• Access Episode 1 - Do you know your field heroes?
• Access Episode 2 - An inside look at the Prairie Pest Monitoring Network.
Access Episode 3How much can one wasp save you?

Access ALL the Field Heroes links here and be sure to follow @FieldHeroes!



Thursday, 4 June 2020

Field Heroes

The Field Heroes campaign continues to raise awareness of the role of beneficial insects in western Canadian crops. Check the recently updated Field Heroes website for scouting guides, downloadable posters, and videos. Learn about these important organisms at work in your fields!  

Real Agriculture went live with a weekly Pest and Predators podcast series!
• Access Episode 1 - Do you know your field heroes?
• Access Episode 2 - An inside look at the Prairie Pest Monitoring Network.

Access ALL the Field Heroes links here and be sure to follow @FieldHeroes!



Thursday, 28 May 2020

Field Heroes

The Field Heroes campaign continues to raise awareness of the role of beneficial insects in western Canadian crops. Check the recently updated Field Heroes website for scouting guides, downloadable posters, and videos. Learn about these important organisms at work in your fields!  

New this week - Real Agriculture went live with a weekly Pest and Predators podcast series!
• Access Episode 1 - Do you know your field heroes?
Access Episode 2An inside look at the Prairie Pest Monitoring Network.

Access ALL the Field Heroes links here and be sure to follow @FieldHeroes!



Friday, 22 May 2020

Field Heroes

Reminder - The Field Heroes campaign continues to raise awareness of the role of beneficial insects in western Canadian crops. Review all the info posted in Wk03!

Spring threshing surprise - Seeking beetle data please!

Reminder - Large numbers of adult Amara ground beetles are being reported this spring (Fig. 1) in canola fields left unharvested last fall. These are non-pest beetles.  Adults feed on seeds, particularly those of cruciferous plants.  Larvae eat pest insects (e.g., grasshopper eggs).

Figure 1. An aggregation of Amara littoralis near Pickardville, AB. This was one of several outbreaks of
carabids observed in central Alberta in the autumn of 2010.  Photo B. Berry.

Read the full post and find a request for beetles posted in Wk03!

Friday, 15 May 2020

Field Heroes

The Field Heroes campaign continues to raise awareness of the role of beneficial insects in western Canadian crops. Check the recently updated Field Heroes website for scouting guides, downloadable posters, and videos. Learn about these important organisms at work in your fields!  

New this week - Real Agriculture went live with a weekly Pest and Predators podcast series!
• Access Episode 1 - Do you know your field heroes?

New for 2020 - Check out the new Field Heroes YouTube video series:
• How to sweep a field
• What's in my sweep net
• Why use a sweep net

Access the Field Heroes Crop Scouting Guides - information on beneficial insects commonly occurring in CerealsOilseeds and Pulse Crops.  There are Pest Scouting Guides applicable to CutwormsAphidsDiamondback moth, and Bertha armyworm PLUS the common arthropod predators and parasitoids that attack them.  Also check out the Sweep Net Scouting Tips in the form of Cereal AvengersOilseed Avengers or Pulse Avengers.  Download or print them all to share!

Be sure to follow @FieldHeroes for practical tips and information.

Thanks to Western Grains Research Foundation for supporting this important campaign made possible by the support and advice of enthusiastic members of the Prairie Pest Monitoring Network.

Link here to access a complete list of all the PPMN Blog Posts related to Natural Enemies!


Monday, 24 June 2019

Insect of the Week (June 24) - Doppelgangers: midge vs. parasitoid

The case of the innocuous versus the evil twin: When making pest management decisions, be sure that the suspect is actually a pest. This can be challenge since insects often mimic each other or look very similar. An insect that looks, moves and acts like a pest may in fact be a look-alike or doppelganger. 


Doppelgangers may be related (e.g. same genus) or may not be related, as in the case of monarch butterflies (Danaus plexippus) and viceroys (Limenitis achrippus).  Doppelgangers are  usually relatively harmless but sometimes the doppelganger is a pest yet their behaviour, lifecycle or hosts may be different. 


Correctly identifying a pest enables selection of the most accurate scouting or monitoring protocol. Identification and monitoring enables the application of economic thresholds. It also enables a producer to select and apply the most effective control option(s) including method and timing of application.  
For the rest of the growing season, the Insect of the Week will feature insect crop pests and their doppelgangers.
Is that a midge or a parasitoid? Why does it matter?


Small insects (i.e., less than 5 mm) are difficult to identify, even for trained specialists and professional entomologists. Especially if they are alive, flying around. Or in a sweep net sample quickly assessed in the field. In the case of midge and small-bodied parasitoids, they can be easily mistaken for one another, but their roles in agriculture tend to be very different. 


Some of the most well-known prairie midge species are agricultural pests, such as the orange coloured wheat midge (Sitodiplosis mosellana), black-coloured Hessian fly (Mayetiola destructor), and alfalfa blotch leafminer (Agromyza frontella). Other midge species found on the prairies include biting midge like no-see-ums (Ceratopogonidae), black flies (Simuliidae), and non-biting midge (Chironomidae). Midge that are not considered agricultural pests may provide some ecosystem services (i.e., pollination), while other midge are disease vectors and are pests of medical and veterinary concern. 
A - Hessian fly – adult Scott Bauer, USDA Agricultural Research Service, Bugwood.org
B - Swede midge – adult
Susan Ellis, USDA APHIS PPQ, Bugwood.org
C - Wheat midge – adult
Mike Dolinski, MikeDolinski@hotmail.com

Parasitoids are natural enemies of other insects. Thus, many parasitoids are important because they help control agricultural pest populations. Adult parasitoids lay eggs, usually singly, onto or into their host. The larvae that hatch from the eggs develop using the host as food, and eventually kill the host. An individual host usually provides enough food for just one parasitoid larva. For this reason, parasitoids species are rarely larger in size than their host species. On the prairies, important parasitoid families that may be mistaken for midge or other small, black insects include: Aphidiinae, Braconidae, Chalchididae, Encyrtidae, Eulophidae, Platygasteridae, Pteromalidae and Trichogrammididae.

Sticky cards or sweep net samples may contain hundreds or thousands of small, black, winged insects. Many are probably parasitoids and not pests so look closely when scouting. A few key differences to watch out for include:

1.      Parasitoids have two pairs of wings while midge have only one pair of wings,
2.      Parasitoids are often shiny or metallic shades of black, blue, purple or green,

3.      Midge may look hairy; parasitoids rarely look hairy.  

1 - Aphidiinae – adult (Aphidius avenaphis) Tyler Wist, AAFC
2 - Braconid wasp – adult
Alberta Agriculture and Rural Development
3 - Chalcid wasp – adult (Phasgonophora sulcata) Michael Gates, Encyclopedia of Live, EOL.org
4 - Tetrastichus julis – adult parasitizing a cereal leaf beetle larva
Swaroop Kher, University of Alberta/AAFC
5 - Ichneumonid – adult (Banchus flavescens) John Gavloski, Manitoba Agriculture, Food and Rural Development
6 - Platygasterid – adult (Inostemma sp.)
Tyler Wist, AAFC
7 - Pteromalid – adult (Pteromalus puparum) Koorosh McCormack, Natural History Museum: Hymenoptera Section, EOL.org
8 - Trichogrammid – adult (Trichogramma sp.) parasitizing an egg
Jack Kelly Clark, University of California Statewide IPM Program

Specific information on these families of parasitoids and on the species of midge listed here can be found in updated Field Crop and Forage Pests and their Natural enemies in Western Canada field guide.

Review previously featured insects by visiting the Insect of the Week page.

Post contributed by Dr. Meghan Vankosky.

Thursday, 16 May 2019

Field Heroes (May 16, 2019; Wk 06)

The Field Heroes campaign continues to raise awareness of the role of beneficial insects in western Canadian crops.

Make use of the Scouting Guides freely available on the Field Heroes website.  Each guide includes valuable information and photos to help identify the contents valuable arthropods occurring in field crops.

Have you seen the "Check the Net" infographics that helps growers understand just how many organisms are present in cereals, oilseeds, and pulses and that ONLY A SMALL PROPORTION are considered economic pests?  A great many of the other insects, spiders, and mites are beneficial organisms that work to regulate crop pests!  Protect and enhance their impact on crop pests by performing in-field assessments and use economic thresholds to help decide when control is warranted and find out more about the Cereal Avengers, Oilseed Avengers and Pulse Avengers!

Link here to access a complete list of all the PPMN Blog Posts related to Natural Enemies!

Be sure to follow @FieldHeroes on Twitter for practical tips and information.

Thanks to Western Grains Research Foundation for their support of this important campaign. This initiative has been made possible through the support and advice of enthusiastic members of the Prairie Pest Monitoring Network.



Friday, 13 July 2018

Abundant parastioids in canola! (Jul 12, 2018; Wk 10)

The cabbage seedpod weevil is a chronic pest of canola in southern Alberta and south western Saskatchewan; it has recently reached Manitoba as well. The pest is managed with insecticides, which are sprayed at early flower. This year, in some canola fields around Lethbridge AB, an abundant parasitoid wasp was noticed at the time when fields may be sprayed. The wasp was identified as Diolcogaster claritibia (Fig. 1; thanks to Vincent Hervet and Jose Fernandez for confirming identification).

The wasp is a parasitoid that attacks diamondback moth larvae and recently abundant in some fields in 2017. In some of the fields sampled, as many parasitoids as cabbage seedpod weevil (i.e., nearly one per sweep) were observed. In the fields sampled (i.e., around 10), cabbage seedpod weevils were below thresholds on average, though some spots may have been close to the threshold of 2-3 weevils per sweep.

The above observation emphasizes the value of beneficial arthropods like Diolcogaster claritibia.  It is important to recognize that foliar applications of insecticides kill beneficial insects like this small wasp (about 2 mm) which attacks and helps regulate pest populations of diamondback moth or other Lepidoptera, including cutworms and cabbage worms. Thus, think beneficials before you spray!

Figure 1.  Diolcagaster claritibia adult measuring ~2mm in length (Photo credit J. Fernandez, AAFC-Ottawa).


Learn more about beneficials by accessing Field Heroes and all the Blog's Parasitoid posts.

Friday, 29 June 2018

Field Heroes (Jun 28, 2018; Wk 08)

As crops continue to grow, please consider the vital role beneficial organisms have in your fields.  Please make use of the Scouting Guides freely available on the Field Heroes website.  Each guide includes valuable information and photos to help identify the contents of a sweep-net and to increase understanding of the impact of beneficial insects. Please share and encourage use of the Scouting Guides.

Be sure to follow @FieldHeroes on Twitter for practical tips and information. Please tag @FieldHeroes in your own Tweets about beneficials. Re-Tweets are great, too.

Thanks to Western Grains Research Foundation for their support of this important campaign. This initiative is not possible without the support and advice of enthusiastic members of the Prairie Pest Monitoring Network. Our research is having a tangible impact on growers’ pest management decisions.


Link here to access a complete list of all the PPMN Blog Posts related to Natural Enemies!

Thursday, 21 June 2018

Field Heroes (Jun 21, 2018; Wk 07)

What a difference a year makes! The Field Heroes campaign has been successful at raising awareness of the role of beneficial insects in Western Canadian crops. You’ll see this year’s campaign giving growers and agronomists more details on the many natural enemies they should be scouting for in cereal, oilseed and pulse crops.

Please make use of the Scouting Guides freely available on the Field Heroes website.  Each guide includes valuable information and photos to help identify the contents of a sweep-net and to increase understanding of the impact of beneficial insects. Please share and encourage use of the Scouting Guides.

Be sure to follow @FieldHeroes on Twitter for practical tips and information. Please tag @FieldHeroes in your own Tweets about beneficials. Re-Tweets are great, too.

Thanks to Western Grains Research Foundation for their support of this important campaign. This initiative is not possible without the support and advice of enthusiastic members of the Prairie Pest Monitoring Network. Our research is having a tangible impact on growers’ pest management decisions.


Link here to access a complete list of all the PPMN Blog Posts related to Natural Enemies!

Tuesday, 22 May 2018

Insect of the Week (21 May, 2018) - Ground beetles: cutworm natural enemies

 
This week's Insect of the Week is a large group of insects called ground beetles, also known as carabid beetles. Many species feed on cutworms as well as other pests.

Almost 400 different species of ground beetles occur on the Prairies, ranging in size from just a few millimetres to more than 2 centimetres. A field may contain 50 or more species, with densities ranging up to 10 beetles per square meter.

Ground beetles are characterized with long threadlike antennae, have a body that is flattened top-to-bottom, and have strong legs designed for running, large eyes, and obvious jaws (mandibles). Smaller ground beetle species can be important predators of cutworm eggs. Larger species attack and kill fully-grown cutworm larvae.

With all the work they do protecting your crop, ground beetles are real @FieldHeroes.

Find out more about ground beetles at the Insect of the Week page!



Adult Carabus nemoralis attacking a bertha armyworm caterpillar. 
Photocredit - Vincent Hervet, Agriculture and Agri-Food Canada
Species of ground beetles common in agricultural fields on the Prairies. 
From left to right: Bembidion quadrimaculatum, Agonum cupreum, 
Pterostichus melanarius, Calosoma calidum
Photocredit - Henri Goulet (retired), Agriculture and Agri-Food Canada

For a detailed review of ground beetle research, biology, distribution, habitat, diet, etc., see Chapter 1: Ground Beetles (Coleoptera: Carabidae) of the Prairie Grasslands of Canada.





**NEW - Don't forget there's a new cutworm identification manual you can download from the Cutworm Field Guide page - NEW**








Tuesday, 4 July 2017

Insect of the Week (July 03, 2017) - Aphidius parasitoid wasp

This week's Insect of the Week is the Aphidius parasitoid wasp. Their hosts include over 40 species of aphids. Egg to adult development occurs inside the host. New adults chew a hole in the mummified aphid to exit and immediately search for new aphid hosts.

For more information on the Aphidius parasitoid wasp, see our Insect of the Week page.

Parasitized English grain aphid (Tyler Wist, AAFC)

Aphidiidae - adult (Aphidius avenaphis) (Tyler Wist, AAFC)



Follow @FieldHeroes to learn more about the natural enemies that are working for you for FREE to protect your crops!

Remember the NEW Cutworm Field Guide is free and downloadable in 2017!

Friday, 23 June 2017

Weekly Update (Jun 22, 2017; Wk 08) - Field Heroes

@Field Heroes – Western Grains Research Foundation is supporting a new initiative to help growers, agrologists and the general public learn more about beneficial arthropods active in field crops.  Provincial entomologists from Manitoba, Alberta, and Saskatchewan, along with input from AAFC researchers, are working with Synthesis, a communications company, to promote and increase awareness of these incredible arthropod heroes!

Follow @FieldHeroes for great information on these beneficials.  

NEW - Access great information on beneficials to support in-field monitoring at http://www.fieldheroes.ca/

The website includes scouting guides to help identify and link pest/beneficial combinations – all aimed at helping growers and agrologists understand and preserve the many arthropods hard at work in fields across the Canadian prairies.



Monday, 19 June 2017

Insect of the Week (June 19, 2017) - Macroglenes penetrans

This week's Insect of the Week is a beneficial wasp from the Family Pteromalidae named Macroglenes penetrans. It is an important natural enemy of wheat midge.  The wasp is a parasitoid that lives within the wheat midge larva and overwinters within the host.  In the spring, the parasitoid larva develops to emerge from the wheat midge cocoon buried in the soil and seeks out wheat midge eggs.

For more information about M. penetrans, see our Insect of the Week page.


Macroglenes penetrans - adult (AAFC)
Follow @FieldHeroes to learn more about Natural Enemies that are working for you for FREE to protect your crops!

Remember the NEW Cutworm Field Guide is free and downloadable in 2017!

Thursday, 8 June 2017

Weekly Update (Jun 8, 2017; Wk 06) - Field Heroes

@Field HeroesWestern Grains Research Foundation is supporting a new initiative to help growers, agrologists and the general public learn more about beneficial arthropods active in field crops.  Provincial entomologists from Manitoba, Alberta, and Saskatchewan, along with input from AAFC researchers, are working with Synthesis, a communications company, to promote and increase awareness of these incredible arthropod heroes!

Follow @FieldHeroes for great information on these beneficials.  Watch for a NEW website coming soon including scouting guides to help identify and link pest/beneficial combinations – all to help growers and agrologists understand and preserve the many arthropods already working in fields across the Canadian prairies.