Tuesday 14 August 2018

Ladybird beetles (Aug 16, 2018; Wk 15)

Reminder - While scouting, you may encounter these fascinating organisms.....


Figure 1. Ladybird beetle larva (photo credit: AAFC-Beaverlodge)

Figure 2. Ladybird beetle pupa (Left) and larva (Right) (photo credit: AAFC-Beaverlodge)

Figure 3. Ladybird beetle pupa (photo credit: AAFC-Beaverlodge)

Figure 4. Ladybird beetle (Coccinella septempunctata) (photo credit: AAFC-Beaverlodge)

Figure 5. Aphids nestled on wheat head (photo credit: AAFC-Beaverlodge)

Figure 6. An aphid "mummy" adhered to a wheat awn.  Mummy is the aphid host converted to
enclose a soon-to-emerge parasitoid wasp (photo credit: AAFC-Beaverlodge)

Ladybird beetle larvae (Fig. 1-2), pupae (Fig. 2-3), and adults (Fig. 4) can all be found in fields at this time of year.  Take a look at the various stages and the many patterns of native and introduced species to recognize these as Field Heroes!  Ladybird beetles are categorized as general predators and will feed on several species of arthropods but are partial to aphids (Fig. 5).