الفهرس 
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Abstract
The current studies were conducted on the field at kafr El-battikh reigon, Damietta Governorate. The K-186 tomato variety planted in two planting dates first of February and last of September during the two successive seasons 2016/17 and 2017/18 to determine the population abundance of the main insect pests attacking tomato and their associated predators. K-186, G.S and MARRWA tomato varieties to determine Effect of different tomato varieties on the population abundance of the main insect pests attacking tomato in February plantation during the two successive seasons 2016/17 and 2017/18.These experiments were carried out to study the following subjects:
Effect of planting dates on the population abundance of the main insect pests attacking tomato.
Effect of tomato varieties on the population abundance of the main insect pests attacking tomato.
The seasonal abundance of the main insect predators associated with the main insect pests.
The relationship between the main insect pests and their associated predators.