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Journal of Entomology

Year: 2007 | Volume: 4 | Issue: 5 | Page No.: 397-400
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Authors

Levent Unlu

Irfan Ozturk

Keywords

Research Article

Relationships Between the Numbers of Adult Male Pink Bollworm (Pectinophora gossypiella Saund.) Catches on Pheromone Traps and Infestation Ratio of Cotton Bolls

Levent Unlu and Irfan Ozturk
The relationships between infestation ratio and population development of Pink Bollworm adults was investigated in the periods from July to October in 2003-2004. The collection of bolls and the counting adults in the traps from three localities (Kulunce, Cavdarli and Huzurlu) in Harran Plain (Turkey) were conducted weekly. Population development of Pink Bollworm in three localities was parallel with their peak during August and September. In Huzurlu, both infestation level and adults number in trap were the highest (205 adults/per trap and 62% infestation ratio of bolls). During the 2003-2004 years, there was a significant positive linear correlation between infestation ratio of bolls and adult population of Pink Bollworm. R-value was very high such as 0.87, 0.88 and 0.88 in Kulunce, Cavdarli and Huzurlu, respectively. Similarly, R2-values in all localities were determined as 0.757, 0.781 and 0.782, respectively.
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