Helmut Fritz Van Emden

Identifiers

• Open LibraryOL459847A

Top Subjects

• Pesticides -- Environmental aspects (3)
• Insect pests -- Control (2)
• Pests -- Control (2)
• Insect pests -- Biological control (1)
• Pesticides -- Toxicology (1)
• Pests, control (1)
• Pesticides, environmental aspects (1)