PESTICIDE USAGE IN RELATION TO BEEKEEPING

[51] DOLOTOVSKAYA YA, 1962, B APICULT INFORM, V5, P9

[52] DOUTT R. L., 1959, BULL ENT SOC AMER, V5, P93

[53] ENGEL D, 1959, SUEDWESTDEUT IMKER, V11, P140

[54] ERCEGOVAC D, 1958, ACTA VET BEOGRAD, V8, P75

[55] EVENIUS J, 1954, SUDWD IMKER, V6, P302

[56] EVENIUS J, 1960, BIENE BIENENZUCHT, P338

[57] FERENCIK M, 1961, VET CASOPIA, V10, P377

[58] FOOTE HL, 1963, CALIF DEP AGR APIARY, P55

[59] GALOB R, 1958, SLOVEN CAB, V60, P57

[60] A METHOD FOR EVALUATING HONEY BEE FLIGHT ACTIVITY AT HIVE ENTRANCE [J]. JOURNAL OF ECONOMIC ENTOMOLOGY, 1967, 60 (01) : 102 - &

[51] DOLOTOVSKAYA YA, 1962, B APICULT INFORM, V5, P9

[52] DOUTT R. L., 1959, BULL ENT SOC AMER, V5, P93

[53] ENGEL D, 1959, SUEDWESTDEUT IMKER, V11, P140

[54] ERCEGOVAC D, 1958, ACTA VET BEOGRAD, V8, P75

[55] EVENIUS J, 1954, SUDWD IMKER, V6, P302

[56] EVENIUS J, 1960, BIENE BIENENZUCHT, P338

[57] FERENCIK M, 1961, VET CASOPIA, V10, P377

[58] FOOTE HL, 1963, CALIF DEP AGR APIARY, P55

[59] GALOB R, 1958, SLOVEN CAB, V60, P57

[60] A METHOD FOR EVALUATING HONEY BEE FLIGHT ACTIVITY AT HIVE ENTRANCE [J]. JOURNAL OF ECONOMIC ENTOMOLOGY, 1967, 60 (01) : 102 - &