The diamondback moth (DBM), Plutella xylostella (L), has been recorded in Malaysia since 1925. From 1941, it has been the major pest of crucifers grown in the Cameron Highlands and in the lowlands. The insect occurs in high numbers in the drier periods of the year and control has been mainly with the use of insecticides. The indiscriminate use of insecticides on DBM has led to the development o...

The survey was conducted during the period 2013-2016. A total of eight species belonging to subfamily Campopleginae, Cryptinae, Diplazontinae, Ichneumoninae, Pimplinae and Tryphoninae have been listed. material family Ichneumonidae collected from Igdır Eastern Turkey. All them Lysibia nana (Gravenhorst, 1829) is reported for first time Anatolia. Besides, Diadegma elishae (Bridgman,1884), medite...

Vegetables, cultivated on 4.65 million ha with annual production of 53.5 million t in South and Southeast Asia, are subject to severe yield losses from insect pests and diseases in the tropics. Chemical pesticides account for onethird to one-half of the total mean material input cost for vegetable production in the region. Extensive and inappropriate pesticide use has led to pests developing re...

Parasitism of Plutella xylostella (L.) third and fourth instars was evaluated in a cabbage field in Geneva, NY, in 1999. Over the entire season, average parasitism was 33.6% for third instars and 53.6% for fourth instars, and the main parasitoids were Diadegma insulare (Cresson) and Microplitis plutellae Muesbeck. In the early season, total parasitism was low, and mainly caused by D. insulare. ...

The life cycle, within-field distribution, crop damage and impact of natural enemies of the potato tuber moth, Phthorimaea operculella (Zeller) were investigated in two potato cropping systems. The two systems differed in soil type (sandy vs. loess) which in turn affected the choice of cultivars, irrigation programme, insecticide application method (ground vs. aerial), and planting and harvest ...

Caterpillar feeding induces direct and indirect defences in brassicaceous plants. This study focused on the role of the octadecanoid pathway in induced indirect defence in Brassica oleracea. The effect of induction by exogenous application of jasmonic acid (JA) on the responses of Brussels sprouts plants and on host-location behaviour of associated parasitoid wasps was studied. Feeding by the b...

With the discovery of the larval parasitoid, Cotesia plutellae Kurdjumov, and the successful introduction and establishment of two other exotic parasitoid species, viz. Diadegma semiclausum Hellen and Diadromus (Thyraeella) collaris Gravenhorst in the Cameron Highlands, biological control was given greater emphasis in the development of IPM for diamondback moth, Plutella xylostella (L.), in Mal...