Susceptibility of some tomato varieties to some pests and predators

Abstract

This study aimed to study the susceptibility of some tomato plant varieties to some pests and predators population during two successive seasons Nili 2011 and 2012. The obtained results revealed significant differences between the populations mean of Bemisia. Tabaci (Genn.) immature stages on Meram and the two other cultivars, while there were no significant differences in population between Rawan and supper-gekal varieties. Also a significant difference between the populations' mean of Myzus persicae (Sulzer) on Tomato variety supper-gekal and the two others. The means number of Coccinella undecimpunctata and Scymnus syriacus were significant between Tomato cultivar supper-gekal and Rawan, while there were no significant differences in population between Rawan, and Meram varieties. In addition, the results reveled that, there are insignificant between the populations of Orius albidipennis on the three tested varieties. The differences between the population mean of Euseius scutalis Athias-Henriot appeared no significant on the three tested tomato varieties. The data indicated significant differences between the population of Tetranychus urticae Koch and Tetranychus cucurbitacearum (Sayed).on Meram and the two other varieties.

Effect of Phytochemical Components, Morphological and Histological Leaf Structure of Five Tomato Hybrids on Tetranychus urticae Koch Infestation

“…Therefore, it could be concluded that all tested tomato hybrids were variably infested with T. urticae during early Summer plantation. These results were in agreement with those obtained by (Kilany, 1997, Ibrahim et al, 2008, Abdallah et al, 2009, El-Saiedy et al, 2011, Afifi et al, 2013and Yassin et al, 2014.…”

“…It could be concluded that the numbers of eggs and movable stages of T. urticae reached its peaks during September and October in seasons 2013 and 2014, respectively. Similar results were recorded by (Prasad, 2006, Ibrahim et al, 2008and Yassin et al, 2014.…”

Population Dynamics of Mite Pests and Predacious Mites on Three Tomato Cultivars at Menoufia Governorate in Egypt

“…These results were in agreement with those obtained by (Ibrahim et al, 2008;Abdallah et al, 2009, El-Saiedy et al, 2011, Afifi et al, 2013and Ali et al, 2015. Yassin et al, 2014 reported significant differences between the population of T. urticae and Tetranychus cucurbitacearum (Sayed) on Meram, supper-gekal and Rawan Tomato varieties.…”