[Download] "Prediction of Pink Bollworm (Pectinophora Gossypiella (Saunders) Population Cycles in Cotton by Accumulating Thermal Units in the Agro-Climate of Faisalabad (Report)" by Pakistan Journal of Zoology ~ Book PDF Kindle ePub Free
eBook details
- Title: Prediction of Pink Bollworm (Pectinophora Gossypiella (Saunders) Population Cycles in Cotton by Accumulating Thermal Units in the Agro-Climate of Faisalabad (Report)
- Author : Pakistan Journal of Zoology
- Release Date : January 31, 2010
- Genre: Life Sciences,Books,Science & Nature,
- Pages : * pages
- Size : 197 KB
Description
Byline: Muhammad Hamed and Sajid Nadeem - Email: sajidniab@hotmail.com Abstract.- Studies on forecasting population fluctuations of pink bollworm (PBW) of cotton, Pectinophora gossypiella (Saunders) (Lepidoptera: Gelechiidae), were conducted on the basis of accumulation of degree -days (DD). Pheromone trap PBW moth catches per trap per night and the field infestation showed cyclic peaks at the intervals of 323 Celsius DD's. The predicted and observed moth population peaks largely conformed to three years of study. These results indicate that DD can help to detect periods of high risk for moth activity and thus can be used for a management of this pest throughout the crop season. Based on results, different factors responsible for PBW moth population peaks are discussed.
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