Results 71 to 80 of about 29,479 (231)

Growth and development in a lepidopteran with variable instar number, Pseudocoremia suavis (Geometridae), under standard rearing conditions and when parasitised by Meteorus pulchricornis (Hymenoptera: Braconidae)

open access: yesEuropean Journal of Entomology, 2014
Though extra instars are often associated with poor conditions and thought to be a compensation for a low growth rate, the reasons why they are necessary, and for variable instar number existing under standard rearing conditions, are not yet clear.
Emma I. BARRACLOUGH   +3 more
doaj   +1 more source

Influence of a diet containing tobacco on the biology of Ephestia kuehniella (Lepidoptera: Pyralidae) and its parasitoid Habrobracon hebetor (Hymenoptera: Braconidae)

open access: yesEuropean Journal of Entomology, 2020
Host diet often influences its biological parameters and the success of their parasitoids, both in mass rearing, field research and parasitism in applied biological control programs.
Cleder PEZZINI   +2 more
doaj   +1 more source

Insects and Survival: A Review of Primary and Secondary Defense Strategies

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
Based on a review of three decades of literature, insect defense mechanisms are classified into primary (I) and secondary (II) mechanisms of behavioral, morphological, and chemical nature. These mechanisms have been recorded in 22 (I) and 20 (II) orders, respectively.
Lucas Fernandes Silva   +3 more
wiley   +1 more source

Preliminary taxonomic study of the genus Praon (Hymenoptera: Braconidae: Aphidiinae) and its host associations in Iran [PDF]

open access: yesنامه انجمن حشره‌شناسی ایران, 2007
In the current study, the information on occurrence, distribution and host aphid-plant associations for the species of Praon Haliday in Iran are presented. Eight species of Praon were found in the areas under study, which include four previously reported
A. Rezwani   +11 more
doaj  

Do aphid endosymbiotic bacteria influence parasitoid searching behaviour through changes in aphid honeydew production?

open access: yesEcological Entomology, EarlyView.
Hamiltonella defensa infection increases honeydew production in certain aphid genotypes, potentially modifying aphid feeding behaviour. Parasitoid wasps, Aphidius ervi, are more attracted to honeydew from H. defensa‐infected aphids; though larger honeydew amounts may slightly deter searching.
Desiré Macheda   +5 more
wiley   +1 more source

Three new records of the genera Leiophron and Euphorus (Hym.: Braconidae: Euphorinae) from Iran [PDF]

open access: yesنامه انجمن حشره‌شناسی ایران, 2013
The parasitoid wasps of the genera Leiophron Nees and Euphorus Nees were studied in northern Iran (Guilan, Mazandaran and Alborz provinces). The specimens were collected using Malaise traps from different habitats during 2010-2011.
C. van Achterberg   +3 more
doaj  

A Maple Wood Wasp, \u3ci\u3eXiphydria Maculata,\u3c/i\u3e and its Insect Enemies (Hymenoptera: Xiphydriiade) [PDF]

open access: yes, 2017
A xiphydriid wood wasp, Xiphydria mandata, is very common in branches ofAeer spp. in Indiana. and is frequently the proximate cause of branches falling from shade trees. X.
Deyrup, Mark A
core   +2 more sources

A protracted phenology: Post‐diapause larval development of a threatened butterfly

open access: yesInsect Conservation and Diversity, EarlyView.
Larval survival during diapause was high; hibernaculum webs were mostly located near Succisa pratensis plants, which often retained vital leaves through winter. Post‐diapause developmental time varied strongly depending on exposure to different microclimates, being reduced by litter cover, solar radiation and a higher heat load index.
Gwydion Scherer, Thomas Fartmann
wiley   +1 more source

Insectary Plant Species Preferences of Predators and Parasitoid Families in a Mediterranean Horticultural Agroecosystem

open access: yesJournal of Applied Entomology, EarlyView.
ABSTRACT The use of insectary plants to provide alternative food and shelter resources for enhancing natural enemy activity has been established as a common practice in IPM. Candidate flowering plant species have been screened and evaluated for their contribution to enhance life parameters of beneficial insects.
Francesc Gómez Marco   +6 more
wiley   +1 more source

Distribution of an Exotic Pest, \u3ci\u3eAgromyza Frontella\u3c/i\u3e (Diptera: Agromyzidae), in Manitoba, Canada. [PDF]

open access: yes, 2018
Agromyza frontella is an exotic alfalfa pest from Europe that was first detected in North America in 1968 and has since spread westward into Ontario and the north central United States. Informal surveys had detected A.
Gavloski, J.   +4 more
core   +2 more sources

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