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AGRIS - 国际农业科技情报系统

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包含来自聚合器的记录

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pinus ponderosa (2)

risk assessment (2)

abies concolor (1)

abies magnifica (1)

armillaria mellea (1)

结果 1-2 的 2

Risk rating guide for mountain pine beetle in Black Hills ponderosa pine 全文

1980

Stevens, Robert E. | McCambridge, William F. | Edminster, Carleton B.

risk assessment pinus ponderosa insect pests south dakota pest control wyoming forestry related pests of plants (insects and other arthropods) mountain pine beetle diseases and pests black hills national forest black hills national forest (s.d. and wyo.) ...

National Agricultural Library - United States of America

Risk-rating systems for mature red fir and white fir in northern California

1980

Ferrell, George T.

abies concolor armillaria mellea pinus ponderosa risk assessment density oregon forest mensuration and description pests of plants (insects and other arthropods) mathematics and statistics pseudohylesinus sericeus ...

National Agricultural Library - United States of America

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