Authors: Tahmina Akter* and Mohammad Rubel Miah

*Corresponding author’s E-mail: tahmina_sauento@yahoo.com


The study on the damage potentiality and eco-friendly management of red pumpkin beetle on squash was carried out under open field condition at Sher-e-Bangla Agricultural university SAU), Dhaka during the period from October, 2018 to March, 2019. The experiment consisted of seven different treatments viz. T1 = Cultural method (clean cultivation to keep the plot free from weeds and debris & collect grub of Red pumpkin beetle ); + mechanical control method (removal of infested roots, shoots and fruits) at 7 days interval, T2 = Applying Sevin 50 WP @ 1.5g/pit + using vinegar trap, T3 = Mechanical control method at 7 days interval + using Funnel Pheromone trap, T4 = Applying Sevin 50 WP@1.5g/pit+ Spraying Folithion 50 EC@ 1.0 ml/L of water at 15 days interval, T5 = Spraying Pychlorex 20 EC @ 1.0 ml/L of water at 15 days interval + using Pheromone trap, T6 = Spraying Predator 50 EC @ 1.0 ml/L of water at  15 days interval + using mashed sweet gourd trap and T7 = Untreated control. The minimum number of red pumpkin beetle plant-1 ranging from 0.47 - 2.27 at different growth stages was recorded from treatment T4. The lowest percentage of leaf infestation and long petiole plant-1 were in the range of 9.38 – 12.90 and 8.41 – 11.65, respectively with the treatment T4. Likewise,  the highest number of healthy flowers plant-1 (14.27) was recorded from T4 whereas, the lowest percentage of infested flowers (2.7 – 2.73) was also found with T4. But at 45 and 55 days after transplantation, the highest number of healthy fruit plant-1 and lowest infestation was recorded from T5.  The highest percentage of cucurbit fruit fly control (80.42 - 82.41) was also recorded from T5. The highest single fruit weight (460.00 g),  length of fruit(23.10 cm), width of fruit (2.85 cm) fruit weight plant-1 (3.80 kg), fruit weight plot-1 (34.21 kg)  and yield (57.02 t ha-1)  was recorded from T5. Based on the least leaf infestation, it might be concluded that T4 was satisfactory, but for controlling Red pumpkin beetle T5 manifested better results. 

KeywordsDamage potentiality, Red pumpkin beetle, Aulacophora foveicollis, bio-rational management, Squash.

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