Results 51 to 60 of about 111,895 (309)

Can outsourcing pest and disease control help reduce pesticide expenditure? Evidence from rice farmers

open access: yesAgribusiness, EarlyView.
Abstract Outsourcing pest and disease control (PDC) has grown rapidly worldwide, especially in developing countries. Although numerous studies have investigated various advantages of outsourcing PDC, little is known about its impact on pesticide expenditure.
Pengcheng Wang   +2 more
wiley   +1 more source

Insecticide resistance and malaria transmission: infection rate and oocyst burden in Culex pipiens mosquitoes infected with Plasmodium relictum

open access: yesMalaria Journal, 2010
Background The control of most vectors of malaria is threatened by the spread of insecticide resistance. One factor that has been hitherto largely overlooked is the potential effects of insecticide resistance on the ability of mosquitoes to transmit ...
Rivero Ana   +3 more
doaj   +1 more source

Geometric morphometrics of nine field isolates of Aedes aegypti with different resistance levels to lambda-cyhalothrin and relative fitness of one artificially selected for resistance. [PDF]

open access: yesPLoS ONE, 2014
Aedes aegypti, a mosquito closely associated with humans, is the principal vector of dengue virus which currently infects about 400 million people worldwide.
Nicolás Jaramillo-O   +2 more
doaj   +1 more source

Natural insecticides for the control of urticating ant, Tetramorium aculeatum Mayr (Hymenoptera: Formicidae) in a coffee plantation of Southwestern Ethiopia

open access: yesHeliyon, 2021
Coffee, Coffea arabica L. is a vital crop in Ethiopia's social, cultural, and national economy. Despite its dominant role in the country, the crop is challenged by various insect pests, which reduce coffee yield and quality.
Sisay Kidanu   +2 more
doaj   +1 more source

Efektivitas Insektisida Alami Ekstrak Daun Legetan Untuk Mengendalikan Hama Ulat Grayak (Spodoptera Litura) Pada Daun Cabai Skala Laboratorium [PDF]

open access: yes, 2018
Spodoptera litura or grayak caterpillar is one type of pest that can cause damage to the plant. Plants attacked one of them chili plants. The use of natural insecticides from legetan plants can eradicate grayak worms (Spodoptera litura).
, Dra. Titik Suryani, M.Sc   +1 more
core  

Occurrence of the Leucine-to-Phenylalanine knockdown Resistance (kdr) Mutation in Anopheles Arabiensis Populations in Tanzania, Detected by a Simplified High-Throughput SSOP-ELISA Method. [PDF]

open access: yes, 2006
Molecular markers of insecticide resistance can provide sensitive indicators of resistance development in malaria vector populations. Monitoring of insecticide resistance in vector populations is an important component of current malaria control ...
Alifrangis, Michael   +12 more
core   +3 more sources

How Competitive Is Myanmar's Rice Sector? A Comparison of Production Costs and Efficiency

open access: yesAgribusiness, EarlyView.
ABSTRACT This paper analyzes the cost competitiveness of rice production in Myanmar by examining production costs, cost efficiency, and the potential effect of improving cost efficiency on the country's global competitiveness. To achieve this, we conduct a comparative analysis of production costs among major rice‐producing countries and estimate the ...
Nandar Aye Chan   +3 more
wiley   +1 more source

Mixed-function oxidases and esterases associated with cross-r esistance between DDT and lambda-cyhalothrin in Anopheles darlingi Root 1926 populations from Colombia

open access: yesMemorias do Instituto Oswaldo Cruz, 2009
In order to establish the insecticide susceptibility status for Anopheles darlingi in Colombia, and as part of the National Network on Insecticide Resistance Surveillance, five populations of insects from three Colombian states were evaluated ...
Idalyd Fonseca-González   +3 more
doaj   +1 more source

Sustainable control of Anopheles mosquito population [PDF]

open access: yes, 2014
Despite the widespread use of insecticides, community engagement programmes and preventive measures mosquito borne diseases are growing and new tools to prevent the spread of disease are urgently needed. An alternative control measure for the eradication
Birch, Philip   +5 more
core   +1 more source

Effects of selected insecticides on osmotically treated entomopathogenic nematodes [PDF]

open access: yes, 2012
Combining environmentally friendly insecticides with entomopathogenic nematodes may constitute an effective alternative to conventional chemical control of many insect pests.
Chen, Shulong   +4 more
core   +2 more sources

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