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https://ptsldigital.ukm.my/jspui/handle/123456789/578094| Title: | Differential effects of food plants on the development, egg production and feeding behaviour of the diamondback moth (Plutella Xylostella L.) |
| Authors: | A.B. Idris (Universiti Kebangsaan Malaysia) |
| Keywords: | Brassicaceae Brassica Food plants Plutella xylostella Insecticide-resistant management |
| Issue Date: | Sep-1998 |
| Description: | Differential effects of food plants on developmental time of diamondback moth (DBM) (Plutella xylostella JL) larvae and pupae, larval feeding behaviour and egg production by the adult were studied. The food plants used • were five Brassicaceae plants (Brassica juncea Cosson, B. juncea Cosson var. rugose Bally, B. alba Rebenh, B. oleracea var. alboglabra Bally and B. juncea L. (Czern)) and one Capparidaceae (Cleome rutidosperma DC). The developmental times of DBM larvae and pupae were significantly affected by the food plants. Larval developmental time was significantly longer (10.9 days) when fed on B. alba (cultivated) than on the other food plants. The wild food plants seemed to prolong the developmental time of DBM pupae compared with the cultivated hosts. There was a strong relationship (r = 0.85) between the numbers of eggs laid by DBM adults and the weight of the pupae which developed from larvae f^d on various food plants. In contrast to the wild hosts and three other cultivated hosts, B. juncea seemed to be a better food plant ( better quality food) as it caused higher pupal weight and egg production by the female adults. In a no-choice test, DBM larvae took a significantly longer time to reach DIFFERENTIAL EFFECTS OF FOOD PLANTS B. juncea (wild and cultivated) than other host plants, indicating that the former had fewer feeding attractants. DBM larvae spent significantly shorter time to feed on C. rutidosperma and cultivated B. juncea than on other food plants. In a choice test, DBM larvae took about equal amounts of time to reach each food plant. However, they spent significantly longer time feeding on B. juncea than on other food plants. The potential of C. rutidosperma to be used in insecticide-resistant management of DBM is also discussed. |
| News Source: | Pertanika Journal of Tropical Agricultural Science |
| ISSN: | 1511-3701 |
| Volume: | 21 |
| Pages: | 93-98 |
| Publisher: | Universiti Putra Malaysia Press |
| Appears in Collections: | Journal Content Pages/ Kandungan Halaman Jurnal |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| ukmvital_131113+Source01+Source010.PDF | 1 MB | Adobe PDF |  View/Open |
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