Population Dynamics on The Main Faba Bean Insect Pests in Relation to Certain Ecological Factors in Kafr El-Sheikh Region, Egypt.

Abstract

biotic factors, whereas, in the 2022 season the relationship was significant with R.H%, wind velocity and plant age. The percentage of explained variance was 38 and 84 % during the two seasons, respectively. For Empoasica spp, in the first season, the population of insect density was significantly correlated for minimum temperature, while, in 2022 season population was significant with RH% and predators. Plant age was a significant effect on the population fluctuations of A. craccivora and Empoasica spp during the second season . The percentage of Explained variance for the effect of climatic factors, and biotic factors on Empoasica spp were 75 and 74 % during the two seasons, respectively. This research aims to utilize the obtained results in developing the IPM programs against the main faba bean insect pests through activation of the effect of temperature, relative humidity and wind velocity on insect numbers.