Effects of High Temperature on the Development of Laodelphax striatellus (Homoptera : Delphacidae) and on Its Intracellular Yeastlike Symbiotes
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on the effects of pictorial clues on the efl learners listening comprehension development
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15 صفحه اولProbing stimulants from the rice plant towards the smaller brown planthopper, Laodelphax striatellus (FALLEN) (Homoptera: Delphacidae).
When adult males of the smaller brown planthopper, Laodelphax striatellus were fed on 2% crude rice (leaf and stem) extract containing 15% sucrose there were characteristic stylet sheaths deposited on parafilm membrane. Further bioassays with the butanol-soluble fr. of the extract revealed that it is highly effective for the insects. When the butanol fr. was charged on an ODS open column and el...
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ژورنال
عنوان ژورنال: Applied Entomology and Zoology
سال: 1979
ISSN: 0003-6862,1347-605X
DOI: 10.1303/aez.14.64