Titlebook: Sampling Methods in Soybean Entomology; Marcos Kogan,Donald C. Herzog Book 1980 Springer-Verlag New York Inc. 1980 Cytogenetics.Entomology

Blatant

Sampling Mites on Soybeaninjury observed in Delaware. Whereas up to 16% of all leaves collected were infested with spider mites, only 2% were infested with . hence the strawberry spider mite appears to be the most abundant mite pest. . sp. was collected only once (Baker and Connell 1961).

Water-Brash

General Sampling Methods for Above-Ground Populations of Soybean Arthropods research and surveys. Four of the principal methods are (1) direct observations, (2) ground or beat cloth, (3) sweep net, and (4) vacuum or suction net (usually a D-Vac). Two of these methods, the direct observations and the ground cloth, may approach absolute or direct population estimates for som

FIN

星球的光亮度

Sequential Sampling Plans for Soybean Arthropodseases. Design of a sampling program in which allocation of sampling resources and cost are considered is one of the first and most important steps in developing effective control strategies. The soybean producer must decide, or have someone decide for him, whether soybean pests are present in suffic

LATHE

Sequential Estimation of Soybean Arthropod Population Densities example, to test treatment programs; to investigate reproductive, mortality, and dispersal patterns; and to validate model results. This survey estimation problem is to be contrasted with the management sampling problem, in which the objective is to determine whether or not the population of a pest

馬具

跳動(dòng)

commensurate

Sampling Bean Leaf Beetles on Soybeanated leguminous hosts. . (Forster) is by far the best known of the species, and much of this chapter is based on information gathered on this species. Bean leaf beetle (Popenoe 1889) is the official common name of ., but it has also been used to designate other species of . (Nichols et al. 1974). Al

Morbid

Sampling Aphids in Soybean Fieldsbean community. Several species of aphids successfully colonize and reproduce parthenogenetically on soybean in Asia and parts of Africa: . Koch, . Matsumura, . (Kaltenbach). In the western hemisphere, aphids are mostly transient, although on occasion at least two species are known to form small, us

皺痕

Sampling Leafhoppers on Soybeanrkansas detected 37 species of leafhoppers (Tugwell et al. 1973). Forty-seven species have been recorded in Illinois based on specimens in the International Reference Collection of Soybean-Associated Arthropods (IRCSA unpublished). Sixteen species were listed from Mississippi (Kincade et al. 1970),