Search by affected crop [→ List of all pests on Allioideae]

Insect pests on Allioideae

Picture	Scientific name	Common name	Description
	Agriotes lineatus	Wireworm	Larvae are up to 20 mm in length and have a shiny pale yellow color. Adults are flattened, elongate, brown or black beetles and 7-8 mm in length.
	Agrotis ipsilon	Black cutworm	Larvae hide during daytime in the soil. Young larvae feed on leaves, older larvae feed commonly on seedlings at ground level, sometimes cutting off the stem. When disturbed larvae curl up into a C-shape. They are dark brown or black in color. Adults are brown or gray with irregular spots and lighter hind wings.
	Agrotis segetum	Turnip moth	Larvae are covered with long hairs and 1st instars have 3, 2nd instars between 6 and 10 prolegs. Fully grown larvae are 40-50 in length. Adults have a wingspan of approx. 40 mm and brown fore wings with a clear circular spot in the middle.
	Anasa tristis	Squash bug	Young nymphs are gregarious, green in color with dark legs and head. Adults are dark brown with gray in color and have a yellow underside. Often is the edge of the abdomen marked with gold and brown spots.
		Aphids	Insects vary in size from 2-4 mm. The color varies from green to black. Nymphs are without, adults with wings. They can vector several plant viruses. Leaves are curled and wrinkled, if infestation is severe plants may die.
	Aphis gossypii	Cotton aphid	They vector several viruses, e.g. cucumber mosaic virus, and watermelon virus. They range in color from yellow to very dark. The wingless female adults have pale legs and black tarsi.
	Bemisia sp.	White fly	Larvae are tine (0.2-0.7 mm) scale-like insects. Adults are yellow/white. Feeding causes chlorotic spots on leaves.
	Delia sp.	Maggots	Larvae feed in host plant roots. They are creamy-white maggots. Fully grown larvae can be up to 10 mm in length.
	Helicoverpa armigera	Tomato fruitworm	1st and 2nd larvae are yellow-white in color with dark legs. Color is extremely variable in older larvae. Adults have a wingspan of 35-40 cm, and a length of 14-18 mm. Damage differs by host species. The tomato fruitworm is polyphagous and older larvae may bore into pods and consume seeds.
	Liriomyza sp.	Leafminer	Leafminer are tiny insects which lay their eggs in leaves just below the surface. Larvae mine leaves and destroy photosynthetic area. Adults are small black and yellow flies, which may be detected flying closely around host plants.
		Mealybugs	Scale insects, have often a symbiotic relationship with ants. Adults have glossy white wax threads extend from the body.
- no photo available -	Spodoptera exigua	Beet armyworm	Young larvae commonly feed on the under surface of leaves, leaving the upper epidermis and larger veins intact. They are light green to dark brown with longitudinal stripes. Adults are 10-15 mm long with a wingspan of 25 mm.
	Spodoptera litura	Armyworm	Eggs are laid in clusters of several hundred. Larvae are hairless and variable in color. They have longitudinal bands and two dark spots laterally on each segment.
	Thrips tabaci	Onion thrips	Adults have slender wings, which are fringed with long hairs. Leaves turn silvery or bronze, sometimes stunted and wilt by feeding.
Picture	Scientific name	Common name	Description