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VOL. 5, ISSUE 2 (2023)
A comparative study between some control programs of Aphis gossypii infesting squash plant under field conditions
Authors
Dr. Elham Abdel Fattah El-sawy, Dr. Marwa M Mousa
Abstract
The cotton aphid Aphis gossypii is a major insect pest infesting squash plant resulting in a huge loss in yield and quality to farmers. The objective of this study was to apply a biological and mix control programs on squash crop under field conditions, compared with insecticides to control A. gossypii. The treatments were conducted at El-Nubaria region, El Behiera, Egypt, during two seasons of nili squash plantation (2019&2020). Inspection was made once a week to determine the population density of Aphid. In the chemical treatment we used one of these pesticides (Buprofezin or Super alpha) first application of insecticides was done after one month of transplanting and subsequent applications were done at 15day intervals. In the mixed treatment, we used one of these pesticides (Buprofezin or Super alpha), Beauvaria bassiana and release the predator Chrysoperla carnea alternately every 15day intervals until end of the season. In the biological control, field trials were carried out to determine the efficacy of C. carnea and B. bassiana in alternative way at 15day intervals. General mean of reduction of Aphid was recorded in chemical control (87.25% and 58.5%) during season 2019 and season 2020, respectively. The estimated yield of squash crop post application of the treatments was significant by higher (4.848 & 4.572 ton/fed.) for chemical, followed by Mix (4.1064 & 4.020 ton/fed.) followed by bio (2.925.6& 3.8748 ton/fed.) Compared to (2.6172 & 2.7468 ton /fed.) for the untreated check for season of 2019 & 2020, respectively. According to our findings, the superior, efficient toxic impact of the tested treatment, a high benefit, and the greatest yield were obtained with the use of chemical control during seasons 2019 and 2020.
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Pages:29-33
How to cite this article:
Dr. Elham Abdel Fattah El-sawy, Dr. Marwa M Mousa "A comparative study between some control programs of <i>Aphis gossypii</i> infesting squash plant under field conditions". International Journal of Agriculture and Plant Science, Vol 5, Issue 2, 2023, Pages 29-33
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