摘要:

SUMMARYThe toxicity to the honeybee of apholate, Hexakis (aziridinyl) triazatriphosphorine, was investigated in feeding and contact studies. The LD50for apholate fed to bees in sugar syrup was 120μg./g. after 72 hours, whereas for topical drop applications it was 7000μg./g. after 96 hours. Signs of poisoning are lethargy and inactivity, and appear soon after treatment, but toxic action is slow. Two colonies of bees fed apholate at 0·05% concentration in 3 and 4 litres of syrup were broodless within 23 days. The living worker bees were 20–31% below normal in weight. Apholate in liquid syrup is thus hazardous to bees. Impregnated cord and granular glycerine-sugar baits were, however, not attractive to bees, and caused no harm to them, even with repeated contact.

ISSN:0021-8839    

DOI:10.1080/00218839.1965.11100104

出版商:Taylor&Francis    

年代:1965

数据来源: Taylor

摘要:

SUMMARYMore honeybees visited plots of apple and field beans after these were sprayed with sucrose syrup, but nearly all the bees collected syrup. Fewer bees visited the flowers in sprayed than in unsprayed plots, and less fruit was set. The effect of spraying was very local and did not increase the number of bees visiting the flowers elsewhere on the crop.

ISSN:0021-8839    

DOI:10.1080/00218839.1965.11100105

出版商:Taylor&Francis    

年代:1965

数据来源: Taylor