Author/Editor		de Groot, Maarten
Title		Testing white mustard Sinapis alba (L.) and sweet alyssum Lobularia maritima as a trapcrop for the diamondback moth Plutella xylostella (L.)
Type		monografija
Place		Wageningen
Publisher		Wageningen university and research, Department of entomology
Publication year		2004
Volume		str. 33
Language		eng
Abstract		The Diamondback moth (Plutella xylostella; Lepidoptera: Plutellidae) is a worldwide pest. The host plant are mainly Cabbage species (Cruciferae: Brassica). Only a few decades ago it was found out that the diamondback moth became resistant for several types of insecticides. Therefore other options of controlling this pest insect were needed. One of these options is trap cropping. The principal behind trap cropping is that the female moth prefers to oviposite on the trap crop above the main crop. In addition it is preferred to have a trap crop with a poor correlation between oviposition preference and larval performance. During this research two potential trap crops were tested: White mustard (Sinapis alba) and Sweet alyssum (Lobularia maritima). S. alba and L. maritima are species orginating from the Mediteranean Sea area. L. maritima is mainly used as a ornamental plant. The focus of research was on the larval performance, the arrestment response, the oviposition preference and the occurance in the field. In the experiment of larval performance four aspects were taken into account: survival, development time, weight after emergence and the growth rate. Leaves of cabbage, S. alba and L. maritima were put in different petri dishes with larvae. The larvae were fed the whole period with the leaves till they emerged from the pupae. The results show that the survival on L. maritima is lower than on S.alba. The development time on L. maritima is longer than on S. alba. The weight of the just emerged moths is lower on L. maritima than on S. alba. Therefore the growth rate of larvae is lower on L. maritima as on S. alba. The arrestment response experiment was as follows: Two plants were next to eachother in a pot. One plant was infested with moth larvae. After three days the other plant was checked if this one was infested, too. Every plant combination was taken into account for both infested as uninfested plants. (Abstract truncated at 2000 characters)
Descriptors		MOTHS PEST CONTROL PLANTS