Results 111 to 120 of about 36,986 (299)

Bivariate stochastic modeling of functional response with natural mortality [PDF]

, 2010
A correction due to Abbott (1925) is the standard method of dealing with control mortality in insect bioassay to estimate the mortality of an insect conditional on control mortality not having occurred.
Skirvin, David J., D. J. Skirvin, Fenlon, John S., M. J. Faddy, Faddy, M. J., Skirvin, D., J. S. Fenlon, Faddy, Malcolm, Fenlon, John   +8 more
core   +1 more source

Challenges and limitations of introducing pigeonpea as a new crop into smallholder farming systems through farmer‐to‐farmer education in Zambia

PLANTS, PEOPLE, PLANET, EarlyView.
Legume plants offer generous benefits for both the planet and people by supporting sustainable farming, food and feed systems through their ability to symbiotically fix atmospheric nitrogen. While grain legumes are cultivated and consumed globally, their adoption, market development, and integration into cropping systems vary.
Hamid Khazaei, Sebastian Scott, Jarkko K. Niemi   +2 more
wiley   +1 more source

Toxicity of pesticides and their mixture to primary producers [PDF]

, 2008
The earth’s aquatic ecosystems are threatened by the contamination with a multitude of anthropogenic chemical pollutants. Pesticides are one important group of environmental contaminants.
Knauert, Stefanie
core   +1 more source

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

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

Pest 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, Graham D. Moores, Samantha M. Cook   +2 more
wiley   +1 more source

Mechanism of action of natural and biorational insecticides

, 2021
Conventional insecticides constitute some of our greatest tools to control insect pests but have become increasingly undesirable due to adverse environmental effects, human health complications, and the growing prevalence of insecticide resistance development.
openaire   +4 more sources

Synthetic polymer nanocarrier enhances dsRNA stability but not RNAi efficacy in Brassicogethes aeneus

Pest Management Science, EarlyView.
Experimental setup for dsRNA feeding in Brassicogethes aeneus to evaluate the effect of a synthetic polymer nanocarrier on RNAi efficiency. The experiment assessed whether the nanocarrier enhances RNAi after oral dsRNA delivery. (a) Stability of dsRNA–nanocarrier complexes was tested in simulated gut conditions. (b) Gene expression of αCOP and dre4 was
Triin Kallavus, Liina Soonvald, Iris Callewaert, Ana Isabel Silva, Ericmar Ávila Dos Santos, Silva Vilumets, Riina Kaasik, Sven Vereecken, Lenny Van Daele, Peter Dubruel, Jonathan Willow, Clauvis Nji Tizi Taning, Kristof De Schutter, Eve Veromann   +13 more
wiley   +1 more source

COMPARATIVE EFFICACY OF SYNTHETIC AND BOTANICAL INSECTICIDES AGAINST SUCKING INSECT PEST AND THEIR NATURAL ENEMIES ON COTTON CROP

Journal of Mountain Area Research, 2016
The Synthetic and botanical insecticides are relatively safer for environment and beneficial insects. The study was conducted in Rahim Yar Khan during the cotton cropping season 2014 to evaluate the comparative efficacy of two Synthetic insecticides i.e.
M. A. Baker, A. H. Makhdum, M. Nasir, A. Imran, A. Ahmad, F. Tufail   +5 more
doaj  

Measurements and computations on the behaviour of the insecticides azinphosmethyl and dimethoate in ditches

, 1979
The unintentional pollution of surface water was studied during spraying of the insecticides azinphos-methyl and dimethoate on two fruit farms. Spray drift depended closely on the local situations at the fruit farms (windbreaks, distance from trees to ...
Heer, H., de, de Heer, H.
core  

Insecticides Suppress Natural Enemies and Increase Pest Damage in Cabbage

, 2011
Intensive use of pesticides is common and increasing despite a growing and historically well documented awareness of the costs and hazards. The benefits from pesticides of increased yields from sufficient pest control may be outweighed by developed ...
Bommarco, Riccardo,, Sveriges lantbruksuniversitet., Björkman, Christer,, Bylund, Helena,   +3 more
core   +1 more source