Results 101 to 110 of about 11,900 (265)

Biology of the planthopper Sogatella vibix (Haupt) in Giza, Egypt (Hom., Delphacidae)

open access: yesDeutsche Entomologische Zeitschrift, 1977
Biology of the planthopper Sogatella vibix was studied on wheat seedlings in the glasshouse in Giza, Egypt. At 16–21 °C egg incubation period averaged 16.8 ± 0.09 days. At various temperatures incubation period range from 7–47 days. Total nymphal duration averaged 14.2–15 days at 22–30 °C, and 41.8–43 days at 11–20 °C, with no significant difference ...
openaire   +2 more sources

Herbivorous Insects and the Hawaiian Silversword Alliance: Coevolution or Cospeciation? [PDF]

open access: yes, 1997
Numerous groups of herbivorous insects in the Hawaiian archipelago have undergone adaptive radiations. R. C. L. Perkins collected and documented species in nearly all of these groups.
Roderick, George K.
core  

Impact of Abamectin on Anagrus Nilaparvatae, an Egg Parasitoid of Nilaparvata Lugens [PDF]

open access: yes, 2017
Anagrus nilaparvatae (Hymenoptera: Mymaridae) is an egg parasitoid potential for controlling the major pests on rice, the brown planthopper (Nilaparvata lugens [Hemiptera: Delphacidae]).Abamectin is one of insecticides registered for N. lugens.
Cole, Judith A   +5 more
core   +2 more sources

The global status of insect resistance to neonicotinoid insecticides [PDF]

open access: yes, 2015
This document is the Accepted Manuscript version of the following article: Chris Bass, Ian Denholm, Martin S. Williamson, and Ralf Nauen, ‘The global status of insect resistance to neonicotinoid insecticides’, Pesticide Biochemistry and Physiology, Vol ...
Bass   +110 more
core   +2 more sources

Redescription of Paracentrobia (Paracentrobia) mira (Girault) (Hymenoptera: Trichogrammatidae), with two new synonyms

open access: yesJournal of Asia-Pacific Biodiversity
Both sexes of Paracentrobia (Paracentrobia) mira (Girault) (Hymenoptera: Trichogrammatidae) are redescribed and illustrated based on type material from Queensland, Australia and additional, non-type specimens from Oceania.
Serguei V. Triapitsyn
doaj  

Inventarisasi Parasitoid Telur Wereng Batang Cokelat Di Beberapa Pertanaman Padi [PDF]

open access: yes, 2012
This research was conducted to determine the species of the egg parasitoids in rice fields in Klaten, Jawa Tengah and Bantul, Yogyakarta. The egg parasitoids were observed by trapping them with rice plant (Cisadane) containing eggs of N. lugens.
Meilin, A. (Araz)
core  

Virulensi Wereng Batang Cokelat (Nilaparvata Lugens Stål) dan Strategi Pengelolaannya [PDF]

open access: yes, 2017
Wereng batang cokelat (WBC) timbul menjadi hama utama padi di Asia sebagai dampak revolusi hijau. Ledakan populasi WBC didukung oleh perilaku WBC yang monofagus pada padi, keperidian tinggi, dan kemampuan migrasi jarak jauh.
Chaerani, C. (Chaerani)
core  

Parasitism and predation of the planthopper Tagosodes orizicolus (Homoptera: Delphacidae) by a dryinid parasitoid in Costa Rica

open access: yesRevista de Biología Tropical, 2009
We analyzed the effect of predation and parasitism by the native dryinid Haplogonatopus hernandezae as a natural enemy of the rice pest Tagosodes orizicolus under controlled conditions in an insectary in Costa Rica. We found no change in the proportion of T.
Mora-Kepfer, Floria   +1 more
openaire   +6 more sources

Akemetopon , a new genus containing three new species of planthoppers (Hemiptera: Fulgoroidea: Delphacidae)

open access: yes, 2011
2 Corresponding author Abstract The new delphacid genus Akemetopon gen. n. (Delphacinae: Delphacini) is described and illustrated with 3 new species from Arizona and Mexico: Akemetopon inornatum sp. n., A. politum sp. n., and A. ainigma sp. n.
Kathryn M. Weglarz, C. Bartlett
semanticscholar   +1 more source

Pengaruh Konsentrasi Subletal Deltametrin terhadap Nutrisi dan Pertumbuhan Tanaman Padi [PDF]

open access: yes, 2011
Increasing the reproductive capacity through increasing plant growth and nutrition is one plausible mechanism of resurgence. This research was intended to determine the effect of deltamethrin on plant vigor and nutrition contents.
Indradewa, D. (Didik)   +3 more
core  

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