نتایج جستجو برای: leafhopper
تعداد نتایج: 1096 فیلتر نتایج به سال:
The study results on prevalence of the main harmful insects mother planting basic grape plants Rostov region: rose leafhopper, buffalo treehopper, tree cricket, tobacco and thrips, which are polyphagous phytophages, presented. As a result negative impact organisms plant normal development is disrupted. spread increase in insect harmfulness region facilitated by an average annual temperature to ...
curly top disease is one of the important diseases of sugar beet. spatial pattern and population variation of leafhoppers circulifer haematoceps, and c. tenellus, vectors of sugar beet curly top virus, were studied in hamadan province, iran for three years (2007- 2009). sampling was carried out at the early stage of the plant growth, in accordance with planting date for 9 weeks, in 7- 10 day in...
Oviposition behavior of Sophonia rufofascia, a polyphagous leafhopper recently introduced to the Hawaiian Islands, was studied on 6 common plant hosts in Hawaii Volcanoes National Park. The average number of eggs per leaf was approximately 1 in ’a’ali’i (Dodonea viscosa) and firetree (Myrica faya), and closer to 2 in Hawaiian holly (Ilex anomala), ’ohi’a lehua (Metrosideros polymorpha), sandalw...
The cotton leafhopper (Jacobiasca lybica) is one of the polyphagous species and its control mainly based on chemical treatments, however bio-ecological parameters are still poorly understood especially under Moroccan conditions. In this work, population ecology planning insecticide treatments recorded degree-days (DD) in a citrus orchard vineyard separated by windbreak (WB) Cypress Acacia were ...
A new monotypic genus of empoascine leafhopper, Alafrasca gen. nov. is described and illustrated for A. sticta sp. nov. from Sichuan, China as its type species. Habitus photos and illustrations of male genitalia of the new species are given. A checklist of the tribe in China is also provided.
The leafhopper genus Atkinsoniella was originally established by Distant (1908) for two species with A. decisa as type species. So far, 75 valid species are known worldwide and of these, 63 are from China (Yang et al. 2011). Because Atkinsoniella is a very large and morphologically heterogeneous genus it is desirable to recognize smaller groups of species with distinctive characteristics.
The leafhopper genus Parafagocyba Kuoh et Hu, 1992 and Zorka Dworakowska, 1970 are reviewed. One new species of Parafagocyba is described and illustrated, Parafagocyba forficula n. sp., and Parafagocyba multimaculata Kuoh et Hu 1992 is transferred to the genus of Zorka Dworakowska, 1970. Two species of Zorka are also newly recorded from China.
report of typhlocyba (edwardsiana) avellanae (hem.: cicadellidae) as a rice pest in firoozabad, iran
during the study of rice pests in firoozabad, fars province, iran in june 2002, leafhopper specimens were collected on rice stems. the specimens were identified as typhlocyba (edwardsiana) avellanae (edwards) by unal zeybekuglu, ondokuz mayys university, turkey. this species is a new record for iran.
iranian species of the leafhopper genus neoaliturus distant, 1918 (n. alboflavovittatus (lindberg), n. decemocellatus (dlabola); n. dubiosus (matsumura), n. fenestratus (herrich-schäffer), n. guttulatus (kirschbaum), n. haematoceps (mulsant and rey), n. opacipennis (lethierry), n. pulcher (haupt); n. tenellus (baker)) are reviewed. detailed morphological descriptions and illustrations and a key...
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