University of Maryland Extension

Home and Garden Information Center

Base Name: 
hgic

Tomato Pinworm - Vegetables

Back to Vegetable Crops Small worms in tomatoes Tomato pinworm (Keiferia lycopersicella) larva on leaf Appearance Eggs : Minute, elliptical, light yellow or orange eggs, deposited in small groups of 3-7 on both upper and lower leaf surfaces. Eggs are very difficult to detect. Larvae : Newly hatched...

Tobacco - Tomato Hornworm - Vegetables

Back to Vegetable Crops Large green caterpillar Tobacco hornworm larva damaging a leaf ( Manduca sexta) Photo: Dr. M. Raupp Appearance Eggs : Smooth, round (resemble small pearls), vary in color from yellow/light green to white, hundreds laid singly on undersides of leaves. Larvae : Large,...

Spider Mite - Vegetables

Back to Problems - Herbs Back to leaf yellowing - seedlings and transplants Back to Vegetable Crops Adult spider mites Photo: Dr. Mike Raupp Spider mites: Twospotted spider mite - Tetranychus urticae; Strawberry spider mite Tetranychus turkestani; and European red mite - Panonychus ulmi (Koch)...

Slugs and Snails - Vegetables

Back to vegetable seedling and transplant problems Large ragged holes in leaves Gray garden slug ( Deroceras reticulatum ) Photo: Joseph Berger, Bugwood.org. Slugs : Gray garden slug - Deroceras reticulatum; Tawny garden slug - Limax flavus ; Spotted garden slug - Limax maximus Snail: Brown garden...

Seedcorn Maggot - Vegetables

Back to Seedling and Transplant Problems Cabbage on left is infested with seedcorn maggot Photo: Clemson University - USDA Cooperative Extension Slide Series, Bugwood.org Appearance Eggs: Tiny, elongate, oval, slightly curved, pearly white eggs, usually laid at soil surface singly or in small...

Potato Leafhopper - Vegetables

Back to Vegetable Crops Puckered leaves Potato leafhopper nymph - Empoasca fabae Photo: Frank Peairs, Colorado State University, Bugwood.org Appearance Eggs: Transparent to pale yellow, tiny, inserted into leaf tissue. Nymphs : 5 instars, most of which are elongated and wedge-shaped, pale green,...

Leafminer - Vegetables

Back to Vegetable Crops White lines or trails in leaves Leafminer damage on pumpkin leaves Leafminers are the larvae or immature stages of insects that feed between the surfaces of leaves. Spinach and vegetable leafminer ( Liriomyza sativae) , and American serpentine or Chrysanthemum leafminer (...

Japanese Beetles - Edibles

Back to Insects - Brambles Back to Herb Problems Adult Japanese beetle - Popillia japonica Appearance Eggs : Tiny, white to yellowish white eggs are laid in soil during the summer. Usually deposited 3 to 4 at one location. Larvae: Wrinkled, thick, white grubs with yellowish brown heads, up to 1 1/4...

Cutworm - Vegetables

Back vegetable seedling and transplant problems Plants cut off at soil line. Black cutworm larva (Agrotis ipsilon) and damage it caused to a young corn plant Photo: W.M. Hantsbarger, Bugwood.org Appearance Eggs: Tiny, white-brown spheres (black cutworm) or half-spheres (variegated cutworm), with...

Corn Earworm - Vegetables

Back to Vegetable Crops Worms in Corn Corn Earworm/Tomato Fruitworm Appearance Eggs: Pale green discs that turn yellowish, then gray, with noticeable ridges radiating from the center, laid singly on leaf hairs or corn silk. Larvae: Caterpillars up to 1 3/4" of variable colors, ranging from green,...

Pages

Maintained by the IET Department of the College of Agriculture and Natural Resources. © 2020. Web Accessibility

University programs, activities, and facilities are available to all without regard to race, color, sex, gender identity or expression, sexual orientation, marital status, age, national origin, political affiliation, physical or mental disability, religion, protected veteran status, genetic information, personal appearance, or any other legally protected class. If you need a reasonable accommodation to participate in any event or activity, please contact your local University of Maryland Extension Office.