Results 81 to 90 of about 532 (152)

NATURAL ENEMIES OF DIURAPHIS NOXIA (STERNORRHYNCHA: APHIDIDAE) IN SLOVAKIA [PDF]

open access: yesJournal of Central European Agriculture, 2009
A study from 2002 documented the occurrence of natural enemies (parasitoid wasps, predatory fl ies, entomopathogenic fungi) associated with colonies of the Russian wheat aphid, Diuraphis noxia (Kurdjumov, 1913) (Sternorrhyncha: Aphididae), in the spring ...
Peter TÓTH   +2 more
doaj  

Abundance of adult hoverflies (Diptera: Syrphidae) on different flowering plants

open access: yesCaspian Journal of Environmental Sciences, 2008
Encouraging natural enemies by growing attractive plants is considered an effective method of pest control in organic farming. However, it is important to identify which flowers best attract beneficial insects.
Sadeghi, H.
doaj  

Estimating Predatory Efficiency of Episyrphus balteatus (Diptera: Syrphidae) in Cereal Fields

open access: yesEnvironmental Entomology, 1995
A model was developed to estimate the effect of predation by Episyrphus balteatus larvae on aphid populations in fields of winter wheat. Feeding rate of syrphid larvae was estimated from experiments in field cages using a Holling type-III function. During larval development, syrphids consumed a maximum of 396 aphids, which is only half the potential ...
openaire   +2 more sources

Les pucerons des cultures protégées et leurs ennemis en Tunisie [PDF]

open access: yesTropicultura, 1993
Aphids in the protected crops and their natural enemy in Tunisia. The importance of damage caused by aphids in protected crops, led us to carry out the inventory of aphids as well as the antagonists and to study the distribution of aphid population of ...
Ben Halima-Kamel, M., Ben Hamouda, MH.
doaj  

Perception of aphid infested tomato plant volatiles by the predator Episyrphus balteatus

open access: yes, 2005
In a tritrophic interaction including tomato plant (Lycopersicon esculentum Miller), the herbivore Myzus persicae (Sulzer) and the predator Episyrphus balteatus (De Geer), the perception of the tomato plants produced volatile organic compounds (VOC) by Episyrphus balteatus is investigated.
Verheggen, François   +4 more
openaire   +1 more source

Extreme size variation in the hoverfly Episyrphus balteatus (Degeer) (Dip.: Syrphidae)

open access: yes, 2000
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Interlocking of co-opted developmental gene networks in Drosophila and the evolution of pre-adaptive novelty. [PDF]

open access: yesNat Commun, 2023
Molina-Gil S   +4 more
europepmc   +1 more source

THE PHENOLOGY OF OCCURRENCE OF DOMINANT PREDATORY SYRPHIDAE (DIPTERA) SPECIES IN APPLE ORCHARDS AND ON THEIR EDGES

open access: yesActa Scientiarum Polonorum: Hortorum Cultus, 2017
The blooming wild plants in the vicinity of orchards may attract adult Syrphidae to these cultivations. Hence in 2008–2010 studies were conducted around Czempiń (western Wielkopolska) which covered the occurrence of the imagines of 5 dominant predatory ...
Hanna Piekarska-Boniecka   +4 more
doaj  

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