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regional research project s 59 economic thresholds and sampling subcommittee
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Economic thresholds and sampling of Heliothis species on cotton, corn, soybeans, and other host plants
Regional Research Project S-59. Economic Thresholds and Sampling Subcommittee. · Dept. of Agricultural Communications, Texas A&M University]
159 sayfa · 1979
Heliothis / Heliothis virescens / Heliothis zea