Insect Keys » Canola
     
 
     
 
Small (less than 2 mm), teardrop-shaped insects with cornicles; relatively sedentary or slow moving; aphids (Figure 7).   Larger insects; active and mobile insects; no cornicles; adults light green to brown, 6 to 7 mm long, with a yellow triangle or “V” on back; nymphs wingless, green with black spots on back.