Susceptibility of Four Watermelon Cultivars to Infestation with Tetranyclws urticae Koch.
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چکیده
منابع مشابه
Susceptibility of Tetranychus urticae Koch to an ethanol extract of Cnidoscolus aconitifolius leaves under laboratory conditions
One of the main pests of commercial rose crops in Colombia is the phytophagous mite Tetranychus urticae Koch. To manage this pest, synthetic chemicals have traditionally been used, some of which are well known to be potentially toxic to the environment and humans. Therefore, alternative strategies for pest management in greenhouse crops have been developed in recent years, including biological ...
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Fourteen U.S plant introduction (PI) accessions of C. lanatus var. lanatus (4), C. lanatus var. citroides (5) C. colocynthis (5) and a known susceptible commercial cultivar 'Sugar Baby' were evaluated for resistance to the twospotted spider mite, Tetranychus urticae Koch, in a limited free-choice and free-choice bioassay under laboratory conditions. The limited free choice bioassay, involved ni...
متن کاملPyrethroid Lambdacyhalothrin-Induced Population Increase of Tetranychus urticae Koch (Acari:
J. Agric. Entomol. l(}(3):197-203 (July 1993) ABSTRACT Based on data from apple trees without the presence of any predatory mites, the effect of the pyrethroid lambdacyhalothrin on population density of the twospotted spider mite, Tetranychus urticae Koch, is reported. Results show that significantly (P < 0.05) higher numbers of T. urticae were found in pyrethroid·treatcd trees relative to the ...
متن کاملSpatial Distribution Pattern of Tetranychus urticae Koch (Acari: Tetranychidae) on Different Rosa Cultivars in Greenhouse Tehran
The two-spotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae), is an economically important pest of ornamental plant in Iran. The population abundance and spatial distribution were studied on five Rosa cultivars including Maroussia, Wendela, Elderado, Wenedetta, and Hot Lady during two growing seasons of 2011 and 2012 in greenhouse. The k parameter, index of dispersion, Lloyd’s m...
متن کاملNutritional quality evaluation of four icebox cultivars of watermelon fruit during their development and ripening
Watermelon is a satiating fruit supplemented with health promoting components like sugars, antioxidants mainly lycopene, minerals etc. The biochemical composition, including antioxidants, and the specific activities of enzymes of watermelon fruit of four icebox cultivars were compared at their sequential stages of development and ripening and also an attempt has been made to determine their nut...
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ژورنال
عنوان ژورنال: Acarines: Journal of the Egyptian Society of Acarology
سال: 2011
ISSN: 2090-3790
DOI: 10.21608/ajesa.2011.163603