Contribution to the knowledge of development and harmfulness of imported willow leaf beetle (Plagiodera versicolora) (Coleoptera, Chrysomelidae)
نویسندگان
چکیده
منابع مشابه
nutritional indices of the willow leaf beetle, plagiodera versicolora (coleoptera: chrysomelidae) on different host plants
nutritional indices of the willow leaf beetle, plagiodera versicolora laicharting, third instar larvae and adults were studied on four host plants including salix alba l., salix aegyptica l., populus caspica bornm.and populus alba l.at 22 ± 2 ºc, 70 ± 10% r.h., and a photoperiod of 16:8 h (l: d). the results showed that the highest consumed food by the larvae and adults (148.5 ± 18.0 and 175.21...
متن کاملcharacterization of digestive α-amylase in the midgut of willow leaf beetle plagiodera versicolora (coleoptera: chrysomelidae)
willow leaf beetle, plagiodera versicolora is an important pest of willow trees that feeds on the leaves both as larvae and as adults. -amylases (ec 3.2.1.1) are the major insect digestive enzymes that catalyze the endohydrolysis of long -1,4-glucan chains such as starch and glycogen. in the current study, -amylase activity was studied in the midgut of larvae and adults of p. versicolora. am...
متن کاملChrysomela scripta, Plagiodera versicolora (Coleoptera: Chrysomelidae), and Trichoplusia ni (Lepidoptera: Noctuidae) Track Specific Leaf Developmental Stages
It is well recognized that host-specialized folivores prefer to feed on young in comparison to old leaves. However, the capacity of young leaf feeders to track speciÞc leaf developmental stages has not been clearly demonstrated. Using three insect folivores and two plant species, we show that nitrogen (N) fertilization changes leaf development and that herbivores track these changes in leaf dev...
متن کاملCharacterization of digestive α- and β-glucosidases in the midgut of Plagiodera versicolora Laicharting (Coleoptera: Chrysomelidae)
سوسک برگخوار بید Plagiodera versicolora یکی از آفات مهم درختان جنگلی در دنیا از جمله ایران میباشد. در پژوهش حاضر، فعالیت آلفا و بتا- گلوکوزیداز در معده میانی حشره کاملP. versicolora بررسی شد. نتایج نشان داد که فعالیت آلفا- گلوکوزیداز بیشتر از بتا-گلوکوزیداز بود. pH بهینه برای فعالیت آلفا و بتا- گلوکوزیداز بهترتیب 6 و 9 بهدست آمد. همچنین دمای بهینه فعالیت این دو آنزیم بهترتیب 30 و 25 درجه...
متن کاملSecondary metabolites as stimulants and antifeedants of Salix integra for the leaf beetle Plagiodera versicolora.
Plagiodera versicolora, a willow beetle living on S. sachalinensis, is found on S. integra during early June in Hokkaido Island, Japan. This insect selects several species of willows (Salix), including S. integra as host plant in Honshu Island of Japan. To determine the reasons for the limited distribution of this beetle on the willows of Hokkaido, the feeding preference of the insect to leaves...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Forest Science
سال: 2012
ISSN: 1212-4834,1805-935X
DOI: 10.17221/4582-jfs