NON CHEMICAL CONTROL METHODS OF TROPINOTA SQUALIDA SCOP. ADULTS (COLEOPTERA: SCARABAEIDAE) IN THE NEWLY RECLAIMED LANDS.

Document Type : Original Article

Authors

1 Plant Protection Research Institute, Agricultural Research Centre, Dokki, Giza, Egypt

2 Faculty of Agriculture, Zagazig University, Egypt

Abstract

Blue coloured traps, plant traps and plant extractions (Neem Azal formulations) were evaluated as a means of control against Tropinota squalida in Sharkia and Ismailia Governorates during 1995/96 and 19961 97. The blue traps were more efficient than pan blue water traps for mass trapping adults of these suppressing population density of the tar­get pest. Plant traps (Canola) was used as a plant trap in intercropping sys­tem with wheat or broad bean. The highest attracting effect was achieved 85.27% at the ratio of intercropping 3 canola/7 wheat, while the attraction of canola by 2, 3, 4 were nearly similar, therefore the suit­able intercropping system with 2 caonla/8 wheat was considered as the best ratio for trapping T. squalida. Canola with broad bean was the most effective intercropping ra­tio at rate of 2 canola/8 broad bean. In this ratio, the attraction reached 24% of the total number of beetles attracted to the plot. The repellent effect of two Neem Azal formulations (T.s 1% & T 5%) on adult attraction to flowers was evaluated during 1995 & 1997 on 3 fruit trees, 3 field crops and will mustard. Beetles were counted visually after 1, 2, 5, 7 and 11 days after application in both treated and untreated plants. Neem application on these host plants gave adequate protection for 5-11 days depending on the population density of both host plant flowering and the attracted adults.

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