Avoidance of Erysimum cheiranthoides for oviposition by Pieris rapae has been attributed to
the presence of water-soluble deterrents. The active material was extracted into n-butanol …

Larvae of the cabbage butterfly, Pieris rapae, refuse to feed on the wild mustard, Erysimum
cheiranthoides, due to the presence of alcoholextractable deterrents. The active …

Avoidance of some crucifer species by the crucifer specialist, Pieris rapae, has been
attributed to the presence of oviposition deterrents in these plants. Studies on one such …

The natural resistance of plants to herbivorous insects can often be explained by the
presence of specific metabolites that act as toxins or as behavior-modifying agents …

Wormseed mustard, Erysimum cheiranthoides, is unacceptable as a host for the cabbage
butterfly, Pieris rapae. However, it is preferred for oviposition by Pieris napi oleracea in the …

Oviposition responses of Pieris rapae and P. napi oleracea to 18 cardenolides were
compared under the same conditions. Effects of different concentrations of selected …

Pieris brassicae L. butterflies secrete miriamides onto their eggs. These avenanthramide
alkaloids are strong oviposition deterrents when sprayed onto a cabbage leaf. However …

The structure-activity relationship was investigated of compounds isolated from the eggs of
Pieris brassicae, the large white cabbage butterfly, and eight synthesized related …

The wild crucifer Erysimum cheiranthoides was found to contain extractable constituents that
deterred feeding by larvae of the crucifer specialist Pieris rapae when applied to cabbage …

Cardenolide sequestration by a hemimetabolous aphid and a holometabolous butterfly from
the neotropical milkweed, Asclepias curassavica L., is compared. The oleander aphid, Aphis …