Results 31 to 40 of about 33,449 (271)

First Collection Records of \u3ci\u3eHippodamia Variegata\u3c/i\u3e (Coleoptera: Coccinellidae) in Minnesota Corn and Soybean [PDF]

open access: yes, 2018
The coccinellid Hippodamia variegata (Goeze) (Coleoptera: Coccinellidae) is a relatively recent addition to the North American coccinellid fauna. This species was first reported in 1984 near Montreal, Quebec (Gordon 1987).
Heidel, Thelma T, Morey, Amy C
core   +2 more sources

Effects of transgenic Cry1Ac + CpTI cotton on non-target mealybug pest Ferrisia virgata and its predator Cryptolaemus montrouzieri [PDF]

open access: yes, 2014
Recently, several invasive mealybugs (Hemiptera: Pseudococcidae) have rapidly spread to Asia and have become a serious threat to the production of cotton including transgenic cotton.
De Clercq, Patrick   +7 more
core   +8 more sources

Effect of temperature on population growth and life table parameters of Nephus arcuatus (Coleoptera: Coccinellidae)

open access: yesEuropean Journal of Entomology, 2014
The development, reproduction and life table parameters of the predator Nephus arcuatus Kapur (Coleoptera: Coccinellidae), the most important predator of the spherical mealybug, Nipaecoccus viridis (Newstead) (Homoptera: Pseudococcidae) were studied at ...
Sara ZARGHAMI   +4 more
doaj   +1 more source

First Occurrence of \u3ci\u3eHippodamia Variegata\u3c/i\u3e (Goeze) (Coleoptera: Coccinellidae) in Ohio [PDF]

open access: yes, 2018
(excerpt) Ladybird beetles, or coccinellids (Coleoptera: Coccinellidae), are significant arthropod predators in a variety of terrestrial ecosystems. Numerous classical biological control projects undertaken over the last 120 years in North America have ...
Bergolc, Melanie L   +6 more
core   +2 more sources

Alternative foods for the multicoloured Asian lady beetle Harmonia axyridis (Coleoptera: Coccinellidae)

open access: yesEuropean Journal of Entomology, 2010
The multicoloured Asian lady beetle Harmonia axyridis (Coleoptera: Coccinellidae) may potentially exploit a range of "alternative" food sources. The nutritional value of three common non-prey food groups, i.e. fruit, fungi and pollen, is examined in this
Nick BERKVENS   +5 more
doaj   +1 more source

Holarctic Insects Adventive in Michigan: New and Additional Records (Homoptera, Heteroptera, Coleoptera, Neuroptera) [PDF]

open access: yes, 2017
Fourteen European insects in the Homoptera (4 species), Heteroptera (5), Coleoptera (4), and Neuroptera (1) are reported from Michigan. Ten are new state records (one new Ohio record is given).
Wheeler, A. G, Jr.
core   +3 more sources

Etude morphologique et biologique de la coccinelle Scymnus couturieri Chazeau (Coleoptera-Coccinellidae) prédatrice de la cochenille farineuse du manioc Phenacoccus manihoti Matile-Ferrero [PDF]

open access: yesTropicultura, 1999
Morphological and Biological Study of Scymnus couturieri Chazeau (Coleoptera-Coccinellidae), Predator of Cassava Mealybug Phenacoccus manihoti Matile-Ferrero (Homoptera-Pseudococcidae) in Ivory Coast. Scymnus couturieri is a coccinellidae which was first
Obame Minko, D., Foua-Bi, K.
doaj  

Performance of a predatory ladybird beetle, Anegleis cardoni (Coleoptera: Coccinellidae) on three aphid species

open access: yesEuropean Journal of Entomology, 2009
Qualitative and quantitative differences in prey are known to affect the life histories of predators. A laboratory study was used to evaluate the suitability of three aphid prey, Aphis gossypii, Aphis craccivora and Lipaphis erysimi, for the ladybird ...
OMKAR, Gyanendra KUMAR, Jyotsna SAHU
doaj   +1 more source

Aphidophagous Coccinellids in Alfalfa, Small Grains, and Maize in Eastern South Dakota [PDF]

open access: yes, 2017
In a 13-year study of aphidophagous coccinellids associated with alfalfa (Medicago sativa), maize (Zea mays), and small grain crops in eastern South Dakota, the following species were consistently associated with the crops: Hippodamia convergens, H ...
Beck, D. A   +2 more
core   +3 more sources

Body size and the temporal sequence in the reproductive activity of two species of aphidophagous coccinellids exploiting the same resource

open access: yesEuropean Journal of Entomology, 2008
The hypothesis that small species of aphidophagous coccinellids need lower aphid population densities for reproduction than large species (Dixon, 2007) was tested in the field.
Alois HONĚK   +2 more
doaj   +1 more source

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