Results 51 to 60 of about 241,852 (283)

Population fluctuation of Spodoptera frugiperda eggs and natural parasitism by Trichogramma in maize - doi: 10.4025/actasciagron.v35i3.16769

open access: yesActa Scientiarum. Agronomy, 2013
This study aimed to evaluate the fluctuation of S. frugiperda eggs and natural parasitism by Trichogramma and identify and quantify parasitoid species in maize fields in the state of Rio Grande do Sul, Brazil.
Sônia Thereza Bastos Dequech   +5 more
doaj   +1 more source

Rainforest conversion to monoculture plantations restructures functional communities of braconid parasitoid wasps

open access: yesOikos, EarlyView.
The conversion of rainforests into rubber and oil palm plantations drives biodiversity loss in Southeast Asia. Parasitoid wasps are highly diverse and play an essential role in ecosystems by regulating herbivore populations. Declines in density and diversity of parasitoid wasps, after land‐use change is well‐documented, but potential functional losses ...
Azru Azhar   +17 more
wiley   +1 more source

First record of Gonatocerus litoralis (Haliday) (Hymenoptera: Mymaridae) from Anoplotettix putoni Ribaut (Hemiptera: Cicadellidae)

open access: yesJournal of Entomological and Acarological Research, 2013
The mymarid Gonatocerus litoralis (Haliday) is recorded for the first time as an egg parasitoid of the leafhopper Anoplotettix putoni Ribaut. A study of the main morphological characters shows unusual variation in distribution of the multiporous plate ...
G. Viggiani
doaj   +1 more source

Paratelenomus anu Rajmohana, Sachin & Talamas (Hymenoptera, Scelionidae): description and biology of a new species of phoretic egg parasitoid of Megacopta cribraria (Fab.) (Hemiptera, Plataspidae) [PDF]

open access: yesJournal of Hymenoptera Research, 2019
Paratelenomus anu Rajmohana, Sachin & Talamas, sp. nov. (Hymenoptera: Scelionidae) is an egg parasitoid of the kudzu bug, Megacopta cribraria (Fab.) (Hemiptera: Plataspidae). It is morphologically and genetically distinct from P.
Keloth Rajmohana   +5 more
doaj   +3 more sources

The shared benefits of fallen fruits: A novel mechanism stabilizing a nursery pollination mutualism between Sambucus and kateretid beetles

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Understanding how cooperative interactions remain stable matters for biodiversity because many plants rely on specialist insects that can also impose reproductive costs. We studied the interaction between Sambucus sieboldiana and seed‐consuming Heterhelus beetles through detailed field observations and pollination experiments.
Suzu Kawashima   +3 more
wiley   +1 more source

SYN‐A, a naturally derived synergist, restores pyrethroid efficacy against cabbage stem flea beetle but negatively impacts its parasitoid Microctonus brassicae

open access: yesPest Management Science, EarlyView.
SYN‐A, a naturally derived synergist, inhibited key metabolic pathways associated with pyrethroid insecticide resistance in cabbage stem flea beetle (CSFB) and its parasitoid Microctonus brassicae. SYN‐A restored pyrethroid efficacy against resistant CSFB allowing up to 80% reduction in application rates.
Patricia A. Ortega‐Ramos   +2 more
wiley   +1 more source

Impact of Cry1AB toxin from transgenic maize (Mon 810) and microbial BT spray (Dipel) on the ecology of a non-target parasitoid, Cotesia marginiventris

open access: yes, 2008
Cry1Ab toxin derived from Bacillus thuringiensis (Bt) has been used for the control of susceptible lepidopteran species throughout the world. Currently, sprayable Bt formulations and transgenic plants have been used for lepidopteran pest control.
Paejaroen, Paiphan
core   +1 more source

Temperature-dependent development of Habrobracon hebetor (Hym.: Braconidae) reared on larvae of Galleria mellonella (Lep.: Pyralidae) [PDF]

open access: yesنامه انجمن حشره‌شناسی ایران, 2008
The development times and the survival rates of different stages of Habrobracon hebetor Say reared on the last instar larvae of Galleria mellonella (L.) were compared at ten different constant temperatures (16 - 38 ºC).
A. Sahragard, M. Amir-Maafi, M. Forouzan
doaj  

Comparative study on the egg parasitoids of Erthesina fullo (Thunberg, 1783) (Hemiptera, Pentatomidae) in its native and invaded ranges [PDF]

open access: yesNeoBiota
Erthesina fullo (Thunberg, 1783) (Hemiptera, Pentatomidae) is an emerging invasive pest outside its native Asian range, yet little is known about its egg parasitoids. Egg parasitoid assemblages were surveyed from field-collected egg masses of E. fullo in
Francesco Tortorici   +10 more
doaj   +3 more sources

Intercropping with legumes can reduce insect pest pressure but does not increase yield in winter oilseed rape (Brassica napus L.)

open access: yesPest Management Science, EarlyView.
Intercropping winter oilseed rape with spring faba bean reduced cabbage stem flea beetle and pollen beetle damage but also reduced crop yield. Sowing the intercrop simultaneously with winter oilseed rape was essential to maximize crop protection against cabbage stem flea beetles. Abstract BACKGROUND Winter oilseed rape (WOSR, Brassica napus) is a major
Chloé Aline Raderschall   +6 more
wiley   +1 more source

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