How to Manage Pests
Pests in Gardens and Landscapes
Lygus bugs—Lygus hesperus
Adult lygus bugs are green, straw yellow, or brown with a conspicuous yellow or pale green triangle
on their backs. Nymphs are light green.
Identification of species | Life
Lygus can move into gardens or orchards from weeds, especially when they dry up. They are a particular
problem in beans, strawberries, and orchard crops, feeding on developing flower buds and fruit.
Fruit may become blemished and discolored, deformed, or twisted and may develop depressions or
The best strategy for managing lygus is to remove sources of infestation before damage is likely
to occur on the crop. Remove weeds adjacent to the garden before the crop is planted or before
susceptible fruit or buds appear on trees. Insecticides are not usually necessary or effective
in the garden. Insecticidal
soaps sprayed directly on nymphs will kill them. Natural
lygus but do not usually control them.
Damage to pear