Impact of Synthetic Insecticides Against Aphis Gossypii Glover, Bemisia Tabaci (Genn.) and Their Associated Predators on Cotton Plants

Abstract

Pyridinecarboxamide and neonicotinoids insecticides are used in small quantity and economically effective for control sucking pests in cotton fields. Therefore, the current study was conducted to evaluate the efficiency of flonicamid, imidacloprid and dinotefuran and its compared with abamectin, carbosulfan, malathion and cholorpyrifos against cotton aphids, Aphis gossypii Glover and whitefly, Bemisia tabaci (Genn.) and its associated predators, Chrysoperle carnea (larvae and adults) and spiders in cotton fields at Sakha Agricultural Research Station, Kafr El-Sheikh Governorate, Egypt during 2017 and 2018 cotton seasons. Seven insecticides were applied at their field recommended rates. The obtained results proved that imidacloprid, flonicamid and dinotefuran were recorded the highest mean reduction of aphids (92.95, 86.36 and 76.16%) at 2017 and (90.95, 82.48 and 78.44%) at 2018 season. Carbosulfan and chlorpyrifos caused moderate effective against Aphis gossypii, while the least effective compound was malathion. Concerning the whitefly, imidacloprid, flonicamid and dinotefuran statistically exhibited reduction in populations of adults' stage ranged from 67.54-78.46% in 2017 and 2018 seasons and 71.04-87.26% reduction in immature stages in both seasons, while carbosulfan was the least effective compound against Bemisia tabaci (adult and immature stages). It is important to note that flonicamid, imidacloprid and dinotefuran were less harmful effect on populations of tested predators than the tested organophosphates and cabosulfan. Accordingly, flonicamid, imidacloprid and dinotefuran are useful choice for use in IPM programs to control these pests in cotton fields.

Efficacy of Certain Insecticides and Mineral Oil in Controlling Aphid, Aphis gossypii Glov. and Papaya Ringspot Virus in Squash at Kafr El-Sheikh Governorate

“…The obtained results are in accordance with those of Mohamed & Homam, (2012), who reported that imidacloprid recorded the lowest population of A. gossypii on cucumber plants at Behira and Benisuef during the seasons of 2009 and 2010, while mineral oil gave an intermediate effect in reducing the population. Similarly, El-Dewy et al,(2018) and El-Sherbeni et al, (2018) found that imidacloprid and flonicamid recorded the highest reduction of aphid, A. gossypii on cotton plants.…”

Influence of Potassium Silicate on the Survival, Development and Reproduction of Aphis gossypii Glover (Hemiptera: Aphididae)

“…It not only damages to crops by sucking phloem sap and producing honeydew, which promotes the growth of sooty mold fungus, disrupts leaf respiration and photosynthesis but also transmits several plant pathogenic viruses (Campolo et al, 2014;Afloukou et al, 2021). So, aphids control is heavily reliant on the frequent application of systemic insecticides, which along with short life cycle and rapidly reproductive rate have evolved resistance to a wide spectrum of insecticides in addition to the health and environmental risks (El-Dewy et al, 2018;Chen et al, 2020;Ma et al, 2021).…”

Potential Removal of Some Insecticides from Water using Microalgae and their Determination by a Validated UV-Vis Spectrophotometric Method

“…Imidacloprid (1- methyl]-N-nitro-4,5-dihydro-1H-imidazol-2-amine) is neonicotinoids are broadspectrum insecticides that have excellent systemic and contact activity, making them suitable for use on a wide range of crops, turf, ornamentals, and termites as well as fleas and ticks (Bhandari et al, 2019). In addition, it has been found in soil, groundwater, wetlands, dust, vertebrate prey, and food (Craddock et al, 2019;El-Dewy et al, 2018). Oxamyl, (N, Ndimethylcarbamoyloxyimino-2-(methylthio) acetamide) is a carbamate compound.…”