Results 41 to 50 of about 7,563 (225)

Combined effects of canola plant density and insecticide management strategies on flea beetle abundance, canola defoliation, and yield across the Canadian prairies

Pest Management Science, EarlyView.
Increasing canola plant density reduced flea beetle abundance per plant and increased yield, independent of region or insecticide use, highlighting its potential as a component of integrated pest management. Abstract The crucifer flea beetle, Phyllotreta cruciferae (Goeze), and the striped flea beetle, Phyllotreta striolata (Fabricius) (Coleoptera ...
Shayla Woodland, Héctor A Cárcamo, Tyler Wist, Jennifer Otani, John Gavloski, Rob W Duncan, Tharshinidevy Nagalingam, Alejandro C Costamagna   +7 more
wiley   +1 more source

Interactive effect of herbivory and competition on the invasive plant Mikania micrantha. [PDF]

PLoS ONE, 2013
A considerable number of host-specific biological control agents fail to control invasive plants in the field, and exploring the mechanism underlying this phenomenon is important and helpful for the management of invasive plants.
Junmin Li, Tao Xiao, Qiong Zhang, Ming Dong   +3 more
doaj   +1 more source

Managing pests by increasing predators through late termination of cover crops

Pest Management Science, EarlyView.
Adding cover crops to crop rotations can improve the sustainability and ecosystem functioning of agroecosystems. By delaying cover‐crop termination, growers can effectively increase natural enemy populations and reduce the need for chemical controls. Abstract BACKGROUND Adding cover crops to crop rotations can improve the sustainability and ecosystem ...
Jared S Adam, John M Wallace, John F Tooker   +2 more
wiley   +1 more source

Defoliation of Oaks [PDF]

Nature, 1922
A REFERENCE to the defoliation of oaks, particularly on the borders of Surrey and Hampshire, by the larvae of Tortrix viridana, was made in NATURE on June 10. It concludes with the remark that the effect of the defoliation is to check “the growth of the trees to some extent for the time being, but is rarely more serious.”
openaire   +5 more sources

Partial defoliation of Brachypodium distachyon plants grown in petri dishes under low light increases P and other nutrient levels concomitantly with transcriptional changes in the roots [PDF]

PeerJ, 2019
Background There have been few studies on the partial defoliation response of grass. It has been unclear how partial defoliation may affect roots at the levels of nutrient accumulation and transcriptional regulation.
Wei Wang, Sunil Kumar Singh, Xiwen Li, Hui Sun, Yu Yang, Min Jiang, Hailing Zi, Renyi Liu, Huiming Zhang, Zhaoqing Chu   +9 more
doaj   +2 more sources

Bt agave: why it is time to explore a new biotechnological frontier

Pest Management Science, EarlyView.
Drylands cover 41% of Earth, requiring sustainable crops. Agave, drought‐ and heat‐adapted, offers high‐value products with low water needs. Pests limit yield, yet Bacillus thuringiensis (Bt) Cry proteins, successful in other plants, remain unexploited in Agave.
Aline Vitória Corim Marim, Marcelo Falsarella Carazzolle, Gonçalo Amarante Guimarães Pereira, Carolina Rossi De Oliveira   +3 more
wiley   +1 more source

Field performance of MON 94637 and laboratory evidence supporting a Bt pyramiding strategy against key lepidopteran pests in Brazil

Pest Management Science, EarlyView.
A genetically modified soybean expressing multiple Cry proteins protects against key lepidopteran pests, consistently reducing larval damage and offering an effective resistance management option for soybean production in Brazil. Abstract BACKGROUND Pyramided Bt genes in crops have been widely adopted to delay insect resistance evolution worldwide. The
Leonardo L Miraldo, Joacir do Nascimento, Thais LB dos Santos, Hallison V Vertuan, Luciana V Machado, Augusto C Crivellari, Márcia OMA José, Jessica Fernandez, Erick MG Cordeiro, Paula M Antunes, Samuel Martinelli, Graham P Head, Katherine Caldwell, Uma Kesanapalli, Ester Buiate, Patrick M Dourado, Ramiro FL Ovejero, Geraldo U Berger, Renato J Horikoshi   +18 more
wiley   +1 more source

Forest defoliation scenarios

Mathematical Biosciences and Engineering, 2007
We consider the mathematical model originally created by Ludwig, Jones, and Holling to model the infestation of spruce forests in New Brunswick by the spruce budworm. With biologically plausible parameter values, the dimensionless version of the model contains small parameters derived from the time scales of the state variables and smaller parameters ...
openaire   +3 more sources

Soybean induced resistance to Spodoptera eridania herbivory

Pest Management Science, EarlyView.
SOD, CAT, APX, PPO, KTI, and MDA levels were higher in the resistant soybean. S. eridania herbivory increased H2O2 and MDA, but decreased SOD and PPO levels. S. eridania herbivory increased KTI activity only in the resistant variety. Isoquercitrin and daidzin were exclusive to resistant and susceptible soybeans.
Bruno Henrique Sardinha de Souza, Arlindo Leal Boiça Júnior, Durvalina Maria Mathias dos Santos, Moacir Rossi Forim, Antonio Pizolato Neto, Andreísa Fabri Lima, Michael Joseph Stout   +6 more
wiley   +1 more source

Concentration of Potassium, Magnesium, and Iron of Brachiaria humidicola (Rendle Schweick) at Various Cultivation Methods and Defoliation Intervals

Animal Production: Indonesian Journal of Animal Production, 2006
The existence of weeds significantly decreases the rate of production and quality of herbage.  Physical weed control by defoliation could be expected to sustain quality and production of herbage, and is able to control weeds expansion.
Mansyur Mansyur, Harun Djuned, Tidi Dhalika, Luki Abdullah   +3 more
doaj