Results 211 to 220 of about 81,357 (262)

Analysis of pest-epidemic model by releasing diseased pest with impulsive transmission

Nonlinear Dynamics, 2010
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Wang, Xia, Tao, Youde, Song, Xinyu
openaire   +2 more sources

Systems Analysis and Pest Management

1971
Previous chapters have dealt with various aspects of biological control theory and practice and with natural control factors, particularly the role of predators and parasites. The following chapters continue the same theme but with greater emphasis on integrated control and the role biological control plays in the application of integrated control in ...
R. W. Stark, Ray F. Smith
openaire   +1 more source

Systems Analysis and Rice Pest Management

1991
Rice pest problems are complex. The level of pest attack and damage, and the way in which rice farmers deal with them are determined by a range of factors, including ecological and technical features of the crop and control methods, and social, economic, and institutional features of the farm and region (Fig.
Geoff A. Norton   +4 more
openaire   +1 more source

Multivariate Analysis of Soybean Insect Pests

Environmental Entomology, 1984
The relative impact on soybeans of 24 arthropod species in 18 states is analyzed using the multivariate technique of reciprocal averaging (RA). This ordination technique is related to both weighted averages and to principal components analysis and other eigenvector techniques.
Hugh G. Gauch, Marcos Kogan
openaire   +1 more source

Pest fencing or pest trapping: A bio‐economic analysis of cost‐effectiveness

Austral Ecology, 2014
AbstractScofieldet al. discredited the utility of pest‐exclusion fences for restoring biodiversity partly on the grounds of unquantified costs and benefits. We estimated the discounted costs of mammal exclusion fences, semi‐permeable (‘leaky’) fences and trapping, over 50 years and adjusted costs by their observed effectiveness at reducing mammalian ...
Grant Norbury   +3 more
openaire   +1 more source

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