Results 51 to 60 of about 32,930 (311)

Tri-trophic effects of inter- and intra-population variation in defence chemistry of wild cabbage (Brassica oleracea) [PDF]

, 2010
The effect of direct chemical defences in plants on the performance of insect herbivores and their natural enemies has received increasing attention over the past 10 years.
Harvey, Jeffrey A., Van Dam, N.M., Jeffrey A. Harvey, James M. Bullock, Raaijmakers, Ciska E., Bullock, James M., Gols, R., Nicole M. van Dam, Dam, N.M., van, Ciska E. Raaijmakers, Gols, Rieta, van Dam, Nicole M., Harvey, J.A., Bullock, J.M., Rieta Gols, Raaijmakers, C.E., Raiijmakers, C.E.   +16 more
core   +1 more source

T(w)o Patch or Not T(w)o Patch: A Novel Biocontrol Model

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT A number of top‐down biocontrol models have been proposed where the introduced predators' efficacy is enhanced via the provision of additional food (AF). However, if the predator has a pest‐dependent monotone functional response, pest extinction is unattainable. In the current manuscript, we propose a model where a predator with pest‐dependent
Urvashi Verma, Aniket Banerjee, Rana D. Parshad   +2 more
wiley   +1 more source

Aphid alarm pheromone (E)‐β‐farnesene: mechanisms, applications, and challenges in pest management

New Plant Protection, EarlyView.
This review highlights the advances in the application of the aphid alarm pheromone (E)‐β‐farnesene (EβF) for pest management. It focuses on smart delivery systems, molecular optimization, synthetic biology, and integration with digital agriculture. Additionally, it discusses key challenges and future directions for enhancing stability, field efficacy,
Yi Yan, Yunhui Zhang, Xuguo Zhou, Xiangrui Li   +3 more
wiley   +1 more source

Parasitoid Hama Penggerek Batang dan Pucuk Tebu di Cinta Manis, Ogan Ilir Sumatera Selatan

Biosaintifika: Journal of Biology & Biology Education, 2014
Serangan hama penggerek  tebu siap panen sebesar 11,25% di Cinta Manis tahun 2007. Lahan pengamatan 1 ha di bagi menjadi 5 petak secara diagonal, masing-masing seluas 200 m2, populasi tanaman sebanyak 1500 batang.
Dewi Meidalima
doaj   +1 more source

Diversity of parasitoid wasps in conventional and organic guarana (Paullinia cupana var. sorbilis) cultivation areas in the Brazilian Amazon [PDF]

Acta Amazonica, 2019
We surveyed parasitoid wasps (Hymenoptera) in two guarana plantations in the central Brazilian Amazon (one conventionally, and one organically managed), as well as in adjacent forest and edge areas between crop and forest.
Karine SCHOENINGER, Jorge L.P. SOUZA, Cristiane KRUG, Marcio L. OLIVEIRA   +3 more
doaj   +1 more source

The herbivore-induced plant volatile methyl salicylate negatively affects attraction of the parasitoid Diadegma semiclausum

, 2010
The indirect defense mechanisms of plants comprise the production of herbivore-induced plant volatiles that can attract natural enemies of plant attackers. One of the often emitted compounds after herbivory is methyl salicylate (MeSA).
Snoeren, T.A.L., Mumm, R., Yang, Y., Yue Yang, Marcel Dicke, Dicke, M., Roland Mumm, Eran Pichersky, Erik H. Poelman, Poelman, E.H., Tjeerd A. L. Snoeren, Pichersky, E.   +11 more
core   +1 more source

Area‐restricted search under realistic constraints

Oikos, EarlyView.
Abstract Area‐restricted search (ARS) is one of the most influential and widely used concepts in foraging theory, capturing a simple rule by which animals intensify local search following a resource encounter. Because ARS performs well in many spatially structured environments, it serves as a basic model for interpreting movement patterns across taxa ...
Inon Scharf, Arik Dorfman
wiley   +1 more source

Parasitoid wasp usurps its host to guard its pupa against hyperparasitoids and induces rapid behavioral changes in the parasitized host. [PDF]

PLoS ONE, 2017
Some parasites have an ability to fabricate the behavior of their host and impel the host to guard parasites' offspring, which is popularly called as bodyguard manipulation.
Prabitha Mohan, Palatty Allesh Sinu
doaj   +1 more source

The quantitative genetic basis of sex ratio variation in Nasonia vitripennis : a QTL study [PDF]

, 2010
Our understanding of how natural selection should shape sex allocation is perhaps more developed than for any other trait. However, this understanding is not matched by our knowledge of the genetic basis of sex allocation.
Shuker, DM, West, SA, West, S. A., Knott, SA, Pannebakker, B.A., West, S.A., R. WATT, Watt, R, D. M. SHUKER, Shuker, D. M., S. A. KNOTT, Knott, S. A., Watt, R., Shuker, D.M., B. A. PANNEBAKKER, Pannebakker, B. A., Pannebakker, BA, Knott, S.A., S. A. WEST, Shuker, David Michael, Pannebakker, Bart   +20 more
core   +1 more source

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

PLANTS, 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, Hidehito Okada, Sadatomo Hisamatsu, Kenji Suetsugu   +3 more
wiley   +1 more source