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August 21, 2008 | History

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C. A. Johansen

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Bear protection for bees

by C. A. Johansen First published in 1975 — 2 editions

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How to reduce bee poisoning from pesticides

by C. A. Johansen First published in 1984 — 2 editions

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alfalfa seed chalcid

by C. A. Johansen First published in 1974 — 1 edition

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Alfalfa weevil and clover leaf weevil

by C. A. Johansen First published in 1982 — 1 edition

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alfalfa weevil and the clover leaf weevil

by C. A. Johansen First published in 1968 — 1 edition

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Beekeeping

by C. A. Johansen First published in 1974 — 1 edition

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bee poisoning hazard from pesticides

by C. A. Johansen First published in 1969 — 1 edition

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Beneficial predators and parasites found on Washington crops

by C. A. Johansen First published in 1975 — 1 edition

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Biology and management of the alkali bee, Nomia melanderi, Cockerell (Hymenoptera, Halictidae)

by C. A. Johansen First published in 1978 — 1 edition

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Brazilian bee

by C. A. Johansen First published in 1975 — 1 edition

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Control of alfalfa leafcutting bee enemies.

by C. A. Johansen First published in 1973 — 1 edition

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Ecology of three species of bumble bees in southwestern Washington

by C. A. Johansen First published in 1967 — 1 edition

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effect of pesticides on the alfalfa leafcutting bee

by C. A. Johansen First published in 1963 — 1 edition

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Encouraging the bumble bee pollinator of cranberries

by C. A. Johansen First published in 1967 — 1 edition

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Get more fruit with honey bee pollinators

by C. A. Johansen First published in 1979 — 1 edition

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Honey bee diseases and their control

by C. A. Johansen First published in 1981 — 1 edition

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Honey bees and alfalfa seed production in eastern Washington

by C. A. Johansen First published in 1972 — 1 edition

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Honey bees increase cranberry production

by C. A. Johansen First published in 1971 — 1 edition

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Increase clover seed yields with adequate pollination

by C. A. Johansen First published in 1971 — 1 edition

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Insecticide toxicity to honey bees

by C. A. Johansen First published in 1973 — 1 edition

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ID Numbers

OLID: OL924239A

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