Results 81 to 90 of about 1,975 (208)

EFFECT OF NEONICOTINOID INSECTICIDES ON PREDATORY COCCINELLIDS IN COWPEA AND GREEN GRAM [PDF]

, 2015
Field experiments were conducted during summer and kharif, 2013 to investigate the effect of neonicotinoid insecticides on predatory coccinellids in cowpea and green gram.
D. M. KORAT, MITHU ANTU, P. M. SANGLE
core  

Alkaloids provide evidence of intraguild predation on native coccinellids by Harmonia axyridis in the field

, 2011
Over a period of less than 5 years, Belgium was thoroughly invaded by the multicolored Asian coccinellid, Harmonia axyridis. At the same time, a decline of some native coccinellid species was observed in tree habitats.
Callier, Pierre, Jean-Christophe de Biseau, San Martin Y Gomez, Gilles, Callier, P., Hautier, Louis, Grégoire, Jean-Claude, de Biseau, Jean-Christophe, Pierre Callier, Gilles San Martin, de Biseau D'Hauteville, Jean-Christophe, Louis Hautier, San Martin, Gilles, Jean-Claude Grégoire   +12 more
core   +1 more source

Characterization of a newly established aggregation of the invasive ladybeetle Harmonia axyridis and current status of the invader in Spain

Spanish Journal of Agricultural Research, 2015
The multicoloured Asian ladybeetle, Harmonia axyridis (Pallas), an invasive biocontrol agent introduced in North and South America, as well as in Europe for aphid control, drastically affected assemblages of native coccinellid species, local communities ...
Xavier Pons, Meritxell Roca, Belén Lumbierres, Éric Lucas   +3 more
doaj   +1 more source

Corn leaf aphid, Rhopalosiphum maidis (Hemiptera: Aphididae), is a key to greenbug, Schizaphis graminum (Hemiptera: Aphididae), biological control in grain sorghum, Sorghum bicolor

European Journal of Entomology, 2008
In the sorghum/aphid/ladybeetle ecosystem found in the Texas High Plains Region of the United States, we found that the corn leaf aphid, Rhopalosiphum maidis (Fitch), is a key aphid species that provides a critical early-season food source for native ...
Gerald J. MICHELS, James H. MATIS
doaj   +1 more source

Heteropterans as aphid predators in inter-mountain alfalfa

European Journal of Entomology, 2009
The relationships between predatory Heteroptera and their potential prey species were investigated during two crop seasons in an inter-mountain area close to the Pyrenees (Iberian Peninsula).
Xavier PONS, Belén LUMBIERRES, Ramon ALBAJES   +2 more
doaj   +1 more source

Aphidophages of the Black Sea coast of the Krasnodar territory and their role in regulating the number of pests

Siberian Journal of Life Sciences and Agriculture
Background. The climaticandfloraldiversity of the biocenosis of the Lazarevskydistrict of the resortcity of Sochiserved to form a uniquespeciescompositionofPalearctic,subtropicalandtropicalentomofaunain the region.Astablesymbiosis of the ...
Evgeniya V. Kashutina, Ludmila N. Bugaeva, Tatuna N. Ignatieva   +2 more
doaj   +1 more source

Aspectos biológicos de Coccidophilus citricola (Coleoptera, Coccinellidae) sobre Aspidiotus nerii e Chrysomphalus aonidum (Homoptera, Diaspididae) Biological studies of Coccidophilus citricola (Coleoptera, Coccinellidae) on Aspidiotus nerii and Chrysomphalus aonidum (Homoptera, Diaspididae)

Ciência Rural, 2005
Aspectos biológicos de Coccidophilus citricola Brèthes (Coleoptera, Coccinellidae) foram estudados sobre Chrysomphalus aonidum Linnaeus e Aspidiotus nerii Bouchè (Homoptera, Diaspididae) criadas sobre abóbora.
Antonio Cesar dos Santos, Santin Gravena
doaj   +1 more source

Landscape simplification, urbanization, biological invasions, and climate change: a review of the major threats to native coccinellids in Central Chile

Coccinellids (Coleoptera) are important natural enemies of pests in agroecosystems. However, worldwide, native species face several threats, including landscape simplification, biological invasions, and climate change. In Central Chile, one of the global
Grez, Audrey, Zaviezo, Tania
core   +1 more source

Molecular analysis of the gut contents of Harmonia axyridis (Coleoptera: Coccinellidae) as a method for detecting intra-guild predation by this species on aphidophagous predators other than coccinellids [PDF]

, 2013
Several studies have demonstrated that the invasive ladybird Harmonia axyridis is a strong intra-guild predator of native species of ladybird. Laboratory studies have shown that H.
Van Leeuwen, Thomas, Van Leeuwen, T., Hautier, L., Hautier, Louis, Aeby, Alexandre, De Clercq, Patrick, Alexandre AEBI, Brecht INGELS, Louis HAUTIER, Patrick DE CLERCQ, Aebi, Alexandre, Ingels, Brecht, Ingels, B., Aebi, A., Thomas VAN LEEUWEN, De Clerc, Patrick, De Clercq, P.   +16 more
core   +1 more source

The pool of Coccinellids (Coleoptera: Coccinellidae) to control Coccids (Homoptera: Coccoidea) in Portuguese citrus groves

, 1999
International audienceThe study of coccinellids for the biological control of those pests was undertaken. This paper aimed firstly to determine which coccidophagous ladybirds are more likely to control coccids by examining Dominance, Constancy and ...
Hemptinne, J, L, Magro, A
core   +3 more sources