Toxicity of six organophosphorus insecticides to a field collected DDT resistance strain of rice weevil, Sitophilus oryzae (L) and red flour beetle, Tribollum castaneum (Herbst) [microform]
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| Médium: | Visual Material |
| Jazyk: | English |
| Vydáno: |
Quezon City
Photoduplication Service,University of the Philippines library
1975.
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| Témata: |