Shepard, B.M.
Helpful insects, spiders, and pathogens : friends of the farmer / B. M. Shepard, A.T. Barrion and J.A. Litsinger. - Los Banos, Laguna, Philippines : International Rice Research Institute, 1987. - 136 p. : ill. (some col.)
Fertilization of plants by insects.
Insects,Injurious and beneficial.
Predatory animals--Control
Helpful insects, spiders, and pathogens : friends of the farmer / B. M. Shepard, A.T. Barrion and J.A. Litsinger. - Los Banos, Laguna, Philippines : International Rice Research Institute, 1987. - 136 p. : ill. (some col.)
Fertilization of plants by insects.
Insects,Injurious and beneficial.
Predatory animals--Control