Shield bugs

Scheme 27 Compounds isolated from shield bugs, and synthesis of a spiroketal produced by the shield bug Cantao parentum [152]...

Adults are shield-shaped, green, tan, brown, or gray /2-in (1-cm) bugs. Most species are smooth, but a few are spiny or rough-textured. They overwinter in weeds in waste areas. Females lay 300-500 barrel-shaped eggs each when the weather warms. They hatch in a week into oval-shaped, wingless nymphs that look similar to the adults. Nymphs develop to adults in about 5 weeks. 

Predaceous Stink bugs Medical shield shape Feed on many insects... 

Bugs have a flat body and a stiletto-like rostrum. There is a small triangular shield behind the conspicuously large neck shield. 

Pods with wartlike pimples. Cause G reen > "k bugs. Adults are large, flat, shield-shaped, green bugs. Nymphs have reddish markings. Handpick adults to control mild infestations. R r control if injury is severe, spray or dust plants with pyrethrin. 

Cause Harlequin bugs. Leaves turn brown, wilt, and die in severe infestations. Look for flat. V2" long, shield-shaped stink bugs with red and black, spotted markings. Nymphs look like adults but are smaller and more round. Handpick to control mild infestations, or spray with pyrethrin. Destroy crop residues after harvest to eliminate pests. 

Buds, flowers, and se jd pods malformed and drop prematurely. Ca jse Stink bugs. Seed pods may have hard, callused bumps. Adults are flat, shield-shaped, green, blue., or red insects that emit a sharp odor when crushed. Handpick these pests to control mild infestations. Spray plants with pyrethrin if injury is serious. 

Description Adults shield-shaped, black-speckled, A" bugs with sharp points on shoulders. Nymphs similar to adults, but wingless. Native to North America. 

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