AN INSECTICIDAL CHECK METHOD FOR MEASURING THE EFFICACY OF ENTOMOPHAGOUS INSECTS

[1] DEBACH P, 1947, J ECON ENT, V39, P821

[2] The effect of insecticides on a beneficial coccinellid, Hippodamia convergens Guer. [J]. JOURNAL OF ECONOMIC ENTOMOLOGY, 1938, 31 : 87 - 92

[3] SMITH H. S., 1929, 4th International Congress Ent. Ithaca, N. Y. 1928, V2, P191

[4] The measurement of the effect of entomophagous insects on population densities of their hosts [J]. JOURNAL OF ECONOMIC ENTOMOLOGY, 1942, 35 (06) : 845 - 849

[1] DEBACH P, 1947, J ECON ENT, V39, P821

[2] The effect of insecticides on a beneficial coccinellid, Hippodamia convergens Guer. [J]. JOURNAL OF ECONOMIC ENTOMOLOGY, 1938, 31 : 87 - 92

[3] SMITH H. S., 1929, 4th International Congress Ent. Ithaca, N. Y. 1928, V2, P191

[4] The measurement of the effect of entomophagous insects on population densities of their hosts [J]. JOURNAL OF ECONOMIC ENTOMOLOGY, 1942, 35 (06) : 845 - 849