Implementation of Eco-Friendly Control Tactics against Infestations of Aphis craccivora and Tetranychus urticae on Common Bean Plants

Abstract

Common bean, Phaseolus vulgaris L. is an important and economic leguminous crop in Egypt due to high protein contents as human food sources. It is infested with numerous sucking-pests but the most serious pests are Aphis craccivora and Tetranychus urticae that causing serious damages on leaves, branches and pods. Therefore, this study was designed to implement some IPM tactics to decrease the infestations of these pests on this crop throughout 2022 and 2023 seasons .Results showed that the infestations by A. craccivora were higher in control than in IPM plots during 2022 and 2023 seasons. As well, the mean numbers of T. urticae were significantly differed between treatments, in which, it was ranged from 2.20-4.50 and 13.99-20.40 mobile stages/leaf in control and IPM plots during seasons 2022 and 2023, respectively. Moreover, crop parameters and yield were significantly higher in IPM than control plots. Fruit yield was 1572±50.5 and 1140±38 kg/feddan in IPM and control, respectively. The implementation of IPM tactics gave significantly highest values on vegetative, flowering and fruiting parameters throughout two seasons. This study spot a light towards developing some sequence treatments in IPM against sucking pests including the application of nova-plus, azomix+ nematodor, nova-k, plant extracts including pepperextract, garlic oil, canola oil, orange oil, jojoba oil and releasing of the predator mite, Phytoseiulus persimilis on common bean. This program would not only help to reduce the infestations, but also it help to put the management plan to safe control of for these serious pests