Monitoring of Pink Bollworm (Pectinophora Gossypiella) Through Light Trap in Cotton Crop at Tando Allahyar & Matiari District
Keywords:
Pink Bollworm; , Light Trap; , Cotton; , Temperature; , MonitorAbstract
The study was conducted in two districts, Tando Allahyar and Matiari, to monitor the pink bollworm (Pectinophora gossypiella) using the light trap technique on cotton crops at the experimental fields of Taluka Jhando Marri, District Tando Allahyar, Sindh. The study was carried out for three months. During the observation period, the pest was monitored through light traps, and results showed that only the Pectinophora gossypiella species was found. The results further revealed the relationship of the pest with different stages of the crop, such as vegetative, flowering, and fruiting stages. In District Tando Allahyar, a greater number of adult moths were captured, particularly during the flowering and fruiting stages of the cotton crop. The catches were recorded as: first fortnight of June (18.62), second fortnight of June (19.50), first fortnight of July (12.50), second fortnight of July (12.37), first fortnight of August (11.37), and second fortnight of August (10.25). The average maximum and minimum temperatures (48˚C and 36˚C) recorded during 2019 at Taluka Jhando Marri indicated that temperature changes affected the prevailing percentage of insects. The pink bollworm showed consistent activity throughout June, with a noticeable peak during mid-month. Similarly, the study conducted at the experimental field of Taluka Hala, District Matiari, showed that adult moths captured through light traps were: first fortnight of June (18.50), second fortnight of June (18.00), first fortnight of July (16.62), second fortnight of July (16.12), first fortnight of August (13.37), and second fortnight of August (12.37). The average maximum and minimum temperatures (48˚C and 30˚C) recorded during 2019 at Taluka Hala indicated that temperature variation affected the pest’s prevalence.
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