Roger Morse, writing in 1989:

> Sevin, a carbamate, was introduced in 1959. As a result of severe losses of honey bees across the United States, the Congress passed the Beekeeper Indemnification Payment Program in 1970. This reimbursed beekeepers for pesticide losses and was retroactive to 1967. The program lasted only 10 years and was abandoned because it did nothing to solve the basic problem. The introduction of Penncap-M, a microencapsulated insectide, caused the beekeepers further difficulty in the 1970s, but by then there was better labeling and stronger legislation from the Environmental Protection Agency. 

Morse, R. A. "History of Subsection Cb: Apiculture and Social Insects." Bulletin of the Entomological Society of America 35.3 (1989): 115-119.

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