Insecta, Homoptera, Pentatomidae .
Description, Biology, Life Cycle, Damage, Common Names, Images
- Host plants: cultivated or wild cabbages (Cruciferae) and, less frequent, some gramineous and potato plants.
- Adult: life span of a few months; fecundity 50-80 eggs during 5-7 oviposition periods.
- Egg: incubation period about 15 days.
- Nymph: from the egg hatch to the adult emergence takes 4-5 weeks and includes 4-5 moults.
- Two generations per year with the the 1st generation of adults in June-July and the second from the end of August to October.
- Adults hibernate on the soil under stones or old leaves and in cracks or crevices in the soil and on trees. Adult activity starts as soon as temperatures rise; they mate and oviposition takes place 2-4 weeks later. Eggs are laid on the underside of cabbage leaves in two rows of 8-12 eggs at each oviposition. These ovipositions can be repeated 5-7 times during the female's life (*) .
Sucking sap from leaves causes damaged areas to become yellowish. Severe attacks can cause all leaves and pods to turn yellow and may lead to the death of young plants.
HYPPZ on line : Species (scientific name), Pests (common names), Glossary, Crops.