Results 261 to 270 of about 32,829 (302)
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The Food Plants of the Leafhoppers

Annals of the Entomological Society of America, 1932
The writer‗s major scientific interest for many years has been in the life histories and food plant relations of the higher Homoptera. The greater number of publications to date have been along systematic lines, not due to interest, but to necessity of naming species before it was possible to publish life history studies of a group.
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Some “Biting” Leafhoppers

Annals of the Entomological Society of America, 1926
The members of the family Cicadellidae are commonly regarded as herbivorous since they are thought to depend entirely on plant juices for their food. It has been known for some time, however, that they will bite man. Riley and Johannsen, for example, mention Platymetopius acutus (Say) and Empoasca mali (LeB.) in this connection.
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Potato Leafhopper Control, 1981

Insecticide and Acaricide Tests, 1982
Abstract The test was planted Jun 15 on the Cal Waterman farm near Batavia, NY. Each treatment consisted of two 30-ft rows bordered on each side by 2 untreated rows replicated 4 times in a Latin square design. Sidedress applications (2 inches to the side and 2 inches deep) using a hand-pushed cone seeder were made on Jun 29 (primary leaf
R. Sanfratello   +2 more
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Durable Superhydrophobic Particles Mimicking Leafhopper Surface: Superoleophilicity and Very Low Surface Energy

, 2017
The powder coating on brochosomes of leafhopper can repel water, diiodomethane (DM), and ethylene glycol (EG) droplets with contact angle >150°. This is attributed to the very low surface energy as low as
Ramakrishna Sukamanchi   +2 more
semanticscholar   +1 more source

The toxicity of flonicamid to cotton leafhopper, Amrasca biguttula (Ishida), is by disruption of ingestion: an electropenetrography study.

Pest Management Science, 2016
BACKGROUND The cotton leafhopper, Amrasca biguttula, is one of the most destructive pests of cotton in Asia. This species is thought to cause damage by injecting enzymatic saliva into various, presently unknown, cotton tissues and ingesting the resulting
K. Tariq   +6 more
semanticscholar   +1 more source

Leafhopper Association on Apple

Journal of Economic Entomology, 1930
A brief report of life history studies and field observations of the leafhoppers in Virginia apple orchards. Serious injury to fruit and foliage has resulted from the feeding of six species. The seasonal abundance of Empoasca fabae, E. maligna, Typhlocyba pomaria, Erythroneura hartii, E. oblique, and E.
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Potato Leafhopper Control, 1987

Insecticide and Acaricide Tests, 1988
Abstract This test was conducted at the Delaware State College Farm in Dover on a 2-year stand of ‘Saranac AR’ alfalfa. Plots were 16 × 20 ft arranged in a randomized complete block design replicated 4 times. In Experiment 1, treatments were applied with a bicycle design, C02-pressurized sprayer delivering 30 gal/acre at 40 psi on 6-inch-
R. Breeding, J. Whalen
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Screening of Castor Genotypes for Resistance Against Green Leafhopper, Empoasca flavescens Fabricius.

, 2018
A screening trial with 28 castor genotypes was conducted to assess their relative reaction to leafhoppers (Empoasca flavescens). Among the twenty eight genotypes screened, leafhopper population ranged from 20.48 to 54.28.
B. Mounica
semanticscholar   +1 more source

SOME UTAH LEAFHOPPERS.

The Canadian Entomologist, 1934
During the past few years it has been possible to collect leafhoppers in many parts of Utah. Because of the abundance of many of the species and the fact that so many feed upon range forage plants, it seems to the writer that the injury due to range leafhoppers in the Rocky Mountain West has been greatly underestimated.
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Symptoms and Growth of Potato Leafhopper‐Tolerant Alfalfa in Response to Potato Leafhopper Feeding

Agronomy Journal, 2000
Alfalfa (Medicago sativa L.) cultivars marketed as resistant, or tolerant, of the potato leafhopper (Empoasca fabae [Harris]) are increasingly available, yet their mechanism of resistance is poorly understood. Our objective was to determine if growth characteristics differ between potato leafhopper–tolerant and susceptible alfalfa cultivars under ...
Marlin E. Rice   +2 more
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