Basal information as biology, host plants, host specificity, LDT (lower developmental threshold = the temperature at which development ceases), SET (sum of effective temperatures = day degrees (Do) above the LDT necessary for completion of a developmental stage), morphology of immature stages and other ecological data from the life of pest are studied.
Biology of known pest Delia species is studied. Our first goal is the successful breeding of Delia radicum in the laboratory conditions. Recently, we have already the fourth generation of this Delia per year.
The poppy capsule weevil causes economical significant damages on poppy flower in the Czech Republic. We study biology, oviposit strategy, LDT, SET and also larval morphology of this pest.
Both studied weevils are importnat pest on Brassica and cause high economical damages on it. We study biology, oviposit strategy, LDT, SET and also larval morphology of these pests.
Larval descriptions of some species for which the material is available are in progress at present: e.g., larvae of C. napi, C. pallidactylus and N. maculaalba.