Results 101 to 110 of about 14,006 (255)

Control Grasshoppers with Insecticides [PDF]

, 1956
Guide to controlling grasshoppers with insecticides discusses a number of insecticides with suggested uses for rangeland, field crops, and ...
Lofgren, John A.
core   +1 more source

Distribution of Orthoptera across the river valley (Kaluga-Aleksin canyon, European Russia) and their dynamics under the overgrowing of meadows

Nature Conservation Research: Заповедная наука
Orthoptera insects (hereinafter – orthopterans) play a key role in grassland ecosystems and are often used as indicators of their condition. To conserve these insects and to model their habitat preferences, we need to know patterns of their distribution ...
Victor V. Aleksanov
doaj   +1 more source

World’s Best Practice Locust and Grasshopper Management: Accurate Forecasting and Early Intervention Treatments Using Reduced Chemical Pesticide

Agronomy
World’s Best Practice management of locusts and grasshoppers requires accurate forecasting that helps determine where and when surveys are preferentially conducted so that infestations can be found quickly as part of ensuring early intervention ...
David Hunter
doaj   +1 more source

Food-plant choice of seven dominant grasshopper species in the Xinjiang grasslands [PDF]

Journal of Orthoptera Research
Feeding habits and competitive interactions among dominant grasshopper species in the Xinjiang grasslands (China) were studied under natural conditions through microscopic analyses of insect crop contents.
Jin-Long Ren, Wen-Jing Kang, Jin-Xing Li, Xi Jin, Ke-Xin Li, Li Zhao   +5 more
doaj   +3 more sources

Going silent? Evidence for independent losses of acoustic communication in tree crickets (Insecta, Orthoptera, Grylloidea, Oecanthidae)

Journal of Systematics and Evolution, EarlyView.
Our ancestral state reconstruction in tree crickets reveals multiple independent and irreversible losses of sound‐producing and ‐receiving structures, supporting the convergent evolution of the silent phenotype. We demonstrate strong evolutionary integration between forewings and tympana, although the discovery of ‘silent listeners′ and ‘deaf singers ...
Lucas Denadai de Campos, Jorge Alves Audino, Silvio Shigueo Nihei, Laure Desutter‐Grandcolas   +3 more
wiley   +1 more source

Neem controls grasshoppers

, 2014
Subsistence farmers in the Sahel could protect their crops against grasshoppers by making sprays from locally-grown neem trees. Sprays made from ground neem seeds are effective in reducing the amount of damage done to cereal crops by grasshoppers...
Technical Centre for Agricultural and Rural Cooperation
core   +1 more source

Comparative analysis of immune responses in ovipositing and non‐ovipositing females of European earwig Analyse comparative de la réponse immunitaire avant et après la ponte chez le forficule européen

Physiological Entomology, EarlyView.
Oviposition and care decrease the total haemocyte concentration. Oviposition and care affect haemocyte type proportions. Serratia marcescens challenge does not affect the immune cell parameters. Abstract Reproduction and immunity are essential biological processes that compete for resources and energy.
Louis Pailler, Wilfrid Jean Louis, Mae Baillergeon, Marion Corjon, Tiffany Laverre, Julien Verdon, Joël Meunier, Christine Braquart‐Varnier   +7 more
wiley   +1 more source

Phylogenetic characteristics of novel Bacillus weihenstephanensis and Pseudomonas sp. to desert locust, Schistocerca gregaria Forskål (Orthoptera: Acrididae)

Egyptian Journal of Biological Pest Control, 2019
Thirty bacterial isolates were isolated from the gut contents of diseased/dead locust. Their pathogenicity was tested against 4th instar nymphs of desert locust, Schistocerca gregaria Forskål (Orthoptera: Acrididae). Two isolates, designated DL2 and DL6,
Tamer A. Mashtoly, Mohamed S. El-Zemaity, Assem Abolmaaty, Gamal M. Abdelatef, Ashraf A. Marzouk, Mohamed Reda   +5 more
doaj   +1 more source

Defecation in preparation for ecdysis drives microplastic clearance in cricket nymphs

Physiological Entomology, EarlyView.
In preparation for ecdysis, cricket nymphs cease feeding and gradually clear their gut contents via frass production, which removes most ingested MPs from their digestive tract. Following exoskeletal moulting, the foregut lining, including any remaining MPs, is shed and excreted alongside frass approximately 6 h later.
Jennie E. Mills, Marshall W. Ritchie, Émile Vadboncoeur, Heath A. MacMillan   +3 more
wiley   +1 more source

A view on the historic and contemporary acridid fauna (Orthoptera: Caelifera: Acrididae) of Iran-A call for conservation efforts

Journal of Crop Protection, 2019
The decline of biodiversity, specifically of insects is one of the major topics in conservation biology. In several countries of Europe, recent studies have shown a severe decline in species number and biomass of insects. In most countries of much higher
Seyed Hossein Hodjat, Alireza Saboori, Martin Husemann   +2 more
doaj