Lygus bugs

Pest: Lygus bugs (Lygus species)

Pest Type: Insect Pest

Major Identifying Features: Adults are green, straw yellow, tiny, like aphids but move faster, red-tipped antennae (Lygus hesperus)

Life Cycle: Lygus bugs overwinter as adults in plant debris, in plants, and uncultivated areas near gardens, adults mate in spring when the weather warms up and lay eggs on a wide range of broadleaf plants, eggs hatch after 1-4 weeks, nymphs go through 5 instar stages, 3-4 overlapping generations per year

Pest Rating: Minor

Management Rating: Easy

Host/Season/Outbreak Information: Favourite overwintering hosts include alfalfa, yellow starthistle, Russian thistle, wild radish, sweet clover, wild mustard, lupine, vetch

Damage Information: Lygus bugs can cause discoloration, bumps, or depressions on fruit, can cause problems in beans, strawberries, orchard crops, and fruits

Management Options: Prevention by removing sources of infestation before damage is likely to occur on the crop, by removing weeds close to the garden before crop is planted, chemical control is not necessary



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