A comparative study on the potential use of sticky traps and visual method for monitoring Diadegma insulare (Cresson) in the field
1996
Idris, A.G. (Kebangsaan Malaysia Univ., Bangi, Selangor (Malaysia). Dept. of Zoology) | Grafius, E.
A comparative study on the possible use of white and yellow sticky traps, and visual counting for monitoring Diadegama insulare (Cresson) population in the field was undertaken. The sticky traps were placed upright on the stake, 15 cm from the ground, in the middle portion of broccoli crown. Visual counting of D. insulare was made every hour, while walking along rows of broccoli and capturing them with the sweep net, on the same day as the number of parasitoid caught on the white sticky traps. There was no significant difference in the number of parasitoid caught on the white and yellow sticky traps, indicating that the parasitoid was not preferred to both colors. The patterns for catch of D. insulare males plus females on the yellow sticky traps and visually counted at different time of the day were not significantly different from uniform distribution. There was also no significant difference between the total D. insulare males plus females caught on yellow sticky traps and those visually counted at different time of the day. The advantages of using either sticky trap or visual counting method in integrated management of diamondback moth or other pests were discussed
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