Quantitative survey of scale insects and their associated natural enemies infesting common fruit crops trees in Sohag governorate

Assaker, Huda Hossam Elden; Salman, A. M. A.; Foad, Hany A.; Attia, S. A.

doi:10.21608/jsasj.2022.284263

Quantitative survey of scale insects and their associated natural enemies infesting common fruit crops trees in Sohag governorate

Document Type : Research and Review Papers

Authors

¹ Plant protection,agriculture,sohag uinversty

² Plant protection Department Faculty of Agriculture Sohag University Sohag 82524 Egypt

³ Plant Protection Research Institute Agricultural Research Center Dokki, Giza Egypt

10.21608/jsasj.2022.284263

Abstract

Fruit crops trees in sohag Governorate are infested with many scale insects and mealybugs, which affect their production qualitatively and quantitatively. The most important of these fruit crops are the following: Citrus trees: there were 17 insect species belonging to 13 families of 6 orders. 12 species was recorded as pests the most abundant one was Aonidiella aurantii, 4 species recorded as predator and one parasitoid. The five species that were collected from arthropods differentiated as 3 species as pests and two species as predators. Aphytis sp and Cheletogenus ornatus were the most abundant associated parasitoid and predator. Mango trees: - there were 11 insect species belonging to 6 families of 3 orders these orders represented by 9, 1and 1 species, respectively were considered as 9 pests attack mango trees and two associated natural enemies, parasitoid and predator. The most abundant pests infest mango trees at Sohag Governorate the diaspided hard scale insect A. tubercularis and the coccid soft scale insect M. mangiferae. Guava trees: there were 12 insect species belonging to 6 families of 3 orders. These orders represented by 9, 1 & 2 species, respectively were considered as 9 pests attack guava trees and three associated natural enemies, parasitoid and 2 predators. The coccidae have long been considered major and sever pests of guava trees where the Ceroplastis cirripediformis was the most abundant pest cause high injury followed by the two diaspididae pests Hemiberlisia latania. Date palm trees :- there were 9 species belonging to 6 families of 3 orders these orders represented by 6, 2 & 1 species, respectively were considered as 6 pests attack date palm trees and three associated natural enemies, 2 parasitoid and 1 predator. The most important pests of date palm. Fiorinia phoenicis followed by Parlatoria blanchardii. Fig trees:- there were 12 species belonging to 9 families of 3 orders. These orders represented by 9, 2 & 1 species, respectively.

Main Subjects