Results 121 to 130 of about 168,030 (343)

Alfalfa Snout Beetle, \u3ci\u3eOtiorhynchus Ligustici\u3c/i\u3e L. (Coleoptera: Curculionidae): Methods for Egg Collection and Larval Rearing [PDF]

open access: yes, 2018
The alfalfa snout beetle, Otiorhynchus ligustici L., is the most serious pest of alfalfa in northern New York State. Recent research efforts focused on the biological control of this insect require the availability of all life stages.
Neumann, Gabor   +2 more
core   +2 more sources

Separate and synergistic anti‐herbivore effects of non‐glandular trichomes and leaf chemistry in a desert plant

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Plant defence phenotypes commonly integrate physical and chemical traits that may act synergistically against herbivores, but empirical evidence for synergy as a defence strategy remains limited.
Rosemary A. E. Glos   +2 more
wiley   +1 more source

The influence of the fasting period on the number of nymphal instars and on the sex ratio of Argas (Persicargas) miniatus (Acari: Argasidae) Influência do período de jejum no número de instares ninfais e na razão sexual de Argas (Persicargas) miniatus (Acari: Argasidae)

open access: yesRevista Brasileira de Parasitologia Veterinária, 2010
The current study investigated the biology of nymphs of the first and second instars of Argas (Persicargas) miniatus. Nymphs were deprived of food for 15, 30 or 60 days and held at 27 ± 1 ºC and 80 ± 10% relative humidity (controlled conditions) or at ...
Huarrisson Azevedo Santos   +8 more
doaj   +1 more source

Evaluation of bio-rational insecticides to control Helicoverpa armigera (Hübner) and Spodoptera exigua (Hübner) (Lepidoptera: Noctuidae) fed on Vicia faba L. [PDF]

open access: yes, 2008
Two botanical pesticides, Neem Azal-T/S (NA) and Quassia amara, one biopesticide, Bacillus thuringiensis subsp. aizawai (Bta) and one combination of Bta + NA were tested against 2nd and 4th instar larvae of the noctuids Helicoverpa armigera (Hübner) and ...
Aggarwal, Naveen   +2 more
core  

Generation cycles in experimental populations of a multivoltine insect

open access: yesJournal of Animal Ecology, EarlyView.
Although theory suggests various mechanisms by which environmental and ecological factors may drive generational fluctuations, our field‐cage experiment is the first to demonstrate how internal dynamics and external disturbances jointly produce synchronised, large‐scale outbreak cycles.
Takehiko Yamanaka   +3 more
wiley   +1 more source

The lethal and sub-lethal effects of a cry1Ab-transformed rice line KMD1 on Chilo suppressalis (Walker) larvae

open access: yes浙江大学学报. 农业与生命科学版, 2003
The lethal and sub-lethal effects of a transgenic rice line KMD1, containing a synthetic cry1Ab gene from Bacillus thuringiensis measured on larvae of striped stem borer, Chilo suppressalis (Walker) is reported in this article.
WANG Shi-gui   +3 more
doaj   +1 more source

Winter fruit contribution to the performance of the invasive fruit fly Drosophila suzukii under different thermal regimes

open access: yesInsect Science, EarlyView.
Highlights: The contribution of winter and early spring‐available fruit (Aucuba japonica, Elaeagnus ×submacrophylla, and Viscum album) to the performance of D. suzukii depended on their P:C ratio and biophysical properties Even though D. suzukii performance was the lowest in A.
Jordy Larges   +9 more
wiley   +1 more source

Role of mitochondrial complex I genes in host plant expansion of Bactrocera tau (Tephritidae: Diptera) by CRISPR/Cas9 system

open access: yesInsect Science, EarlyView.
The role of 3 mitochondrial complex I gene in host expansion of Bactrocera tau was verified by CRISPR/Cas9 gene editing system. A stable homogenous strain (Btndufa7‐/‐) of B.tau was established after silencing Ndufa7. The reduced size of larvae and pupae of Ndufa7 knockout strain was first found.Then different levels of fitness and relative expression ...
Wei Shi   +3 more
wiley   +1 more source

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