Imbrications of Certain Cucurbit Crops Characteristics with the Two-Spotted Spider Mite Infestation | ||||
| Acarines: Journal of the Egyptian Society of Acarology | ||||
| Article 12, Volume 2, Issue 1, January 2008, Page 61-65 PDF (74.34 K) | ||||
| Document Type: Original research articles | ||||
| DOI: 10.21608/ajesa.2008.4981 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| M Ibrahim; Badriea EL-Esnawy; A. El-Adawy | ||||
| Plant Protection Research Institute | ||||
| Abstract | ||||
| The cucurbits; Sudanian watermelon, Sitrullus lanatus var. colocynthoides, Snake watermelon, Cucumis melo var. flexuous and squash, Cucurbita pepo L. were checked weekly to get relationship between the infestation with the twospotted spider mite, and certain chemical and morphological leaf characteristics. The experiment was carried out in two districts; Bahar El-Bakar; south Port Said governorate and El-Hosainia plain, north El-Sharkia governorate; throughout the two successive growing seasons 2007 and 2008.The population of the mite Tetranychus urticae Koch varied according to the crop, season and district. Peak of infestation (29.4 individual/inch2) occurred in July,2007 and (31.1 indiviuals/inch2) in July,2008.The morphological characteristic cleared that Sudanian watermelon has thick hairiness leaves compared with those of Snake watermelon (hairy), whereas Squash leaves are nearly hairless. Chemical determinations of protein, carbohydrates, fats and crude fiber were (10.3, 70.1, 2.7 and 6.3 %) in Sudanian watermelon, (9.1, 56.7, 1.6 and 15.1%) in Snake watermelon and (7.2, 58.1, 1.5 and 15.4%) in Squash, respectively. Mite population positively correlated with increasing nutrient contents of leaves e.g. as crude proteins, crude fats, and carbohydrates and leaves hair. | ||||
| Keywords | ||||
| Cucurbitaceae; leaf characteristics; Tetranychus urticae | ||||
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