Results 41 to 50 of about 7,192 (262)

Diversity of Hymenopteran Egg Parasitoids in Organic and Conventional Paddy Ecosystems

open access: yesTropical Agricultural Research, 2012
Organic farming; cultivation without chemical pesticides and fertilizers, has been known to promote the general plant diversity as well as animal diversity including many groups of animal taxa.
M Gnanakumar   +4 more
doaj   +1 more source

Life-history traits in closely related secondary parasitoids sharing the same primary parasitoid host: evolutionary opportunities and constraints

open access: yes, 2009
Thus far, few studies have compared life-history traits amongst secondary parasitoids attacking and developing in cocoons of their primary parasitoid hosts.
Harvey, J.A.   +2 more
core   +1 more source

Noncrop flowering plants restore top-down herbivore control in agricultural fields [PDF]

open access: yes, 2013
Herbivore populations are regulated by bottom-up control through food availability and quality and by top-down control through natural enemies. Intensive agricultural monocultures provide abundant food to specialized herbivores and at the same time ...
Pfiffner, Lukas   +13 more
core   +1 more source

Choosy egg parasitoids: Specificity of oviposition‐induced pine volatiles exploited by an egg parasitoid of pine sawflies

open access: yesEntomologia Experimentalis et Applicata, 2005
AbstractGeneralist parasitoids are well‐known to be able to cope with the high genotypic and phenotypic plasticity of plant volatiles by learning odours during their host encounters. In contrast, specialised parasitoids often respond innately to host‐specific cues.
Mumm, R.   +3 more
openaire   +1 more source

Egg parasitism of Piezodorus guildinii and Nezara viridula (Hemiptera: Pentatomidae) in soybean, alfalfa and red clover

open access: yesRevista de la Facultad de Ciencias Agrarias, 2022
Piezodorus guildinii Westwood and Nezara viridula (L.) (Hemiptera: Pentatomidae) are important soybean pests. P. guildinii causes more injury and is less susceptible to insecticides compared to N. viridula. N.
María Fernanda Cingolani   +2 more
doaj  

Trichogramma galloi and Trichogramma pretiosum for the management of Duponchelia fovealis (Lepidoptera: Crambidae) in strawberry plants [PDF]

open access: yesPesquisa Agropecuária Brasileira, 2017
: The objective of this work was to determine the ideal number for field release of Trichogramma galloi and T.pretiosum for controlling Duponchelia fovealis (Lepidoptera: Crambidae) in strawberry (Fragaria x ananassa). The experiment was carried out in a
Victor Dias Pirovani   +5 more
doaj   +2 more sources

okktawio/Parasitoids-Egg-Models v0.2_alpha

open access: yes, 2019
Hidden Markov Chain modelization of functional response and egg maduration in parasitoid ...
Octavio Bruzzone
core   +1 more source

Comparisons between the squash bug egg parasitoids Ooencyrtus anasae and O. sp. (Hymenoptera: Encyrtidae): development, survival,and sex ratio in relation to temperature

open access: yes, 1987
Citation: Tracy, J. L., and J. R. Nechols. 1987. “Comparisons Between the Squash Bug Egg Parasitoids Ooencyrtus Anasae and O. Sp. (Hymenoptera: Encyrtidae): Development, Survival, and Sex Ratio in Relation to Temperature.” Environmental Entomology 16 (6):
Tracy, J. L., Nechols, James R.
core   +2 more sources

First report of Trichogramma danausicida and Trichogramma cacaeciae reared from Thaumatotibia leucotreta eggs in Israel

open access: yesZooKeys, 2018
The egg parasitpoids Trichogramma danausicida (Nagaraja) and Trichogramma cacaeciae (Marchal) (Hymenoptera: Trichogrammatidae), are reported for the first time in Israel. Moreover, our discovery of T.
Roy Kaspi   +2 more
doaj   +3 more sources

Loss, persistence and reversal of phenotypic traits

open access: yesBiological Reviews, EarlyView.
ABSTRACT The irreversibility of complex trait loss has long been a tenet of evolutionary biology. However, this idea is increasingly at odds with the numerous documented exceptions across the Tree of Life. We synthesise this growing body of evidence across a diverse array of taxa and traits, exploring the evolutionary conditions that enable ...
Giobbe Forni   +4 more
wiley   +1 more source

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