. Cooperative economic insect report. Beneficial insects; Insect pests. 439. Figure clump of grass for populations of brown wheat mite. Figure counting card inserted between glass slides and metal clip. White counting areas are 1/4 inch wide. Figure used in cleaning slides: A, Wire basket of clips ready for soaking in solvent; B, basket of clips; C, cream can containing solvent for cleaning slides; D, solvent for cleaning Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability -
. Cooperative economic insect report. Beneficial insects; Insect pests. 439. Figure clump of grass for populations of brown wheat mite. Figure counting card inserted between glass slides and metal clip. White counting areas are 1/4 inch wide. Figure used in cleaning slides: A, Wire basket of clips ready for soaking in solvent; B, basket of clips; C, cream can containing solvent for cleaning slides; D, solvent for cleaning Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Animal and Plant Health Service. Plant Protection and Quarantine Programs; United States. Bureau of Entomology and Plant Quarantine; United States. Plant Pest Control Division. Hyattsville, MD. [etc. ] Plant Protection and Quarantine Programs Animal and Plant Health Service
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Keywords: ., bookcentury1900, booksubjectbeneficialinsects, booksubjectinsect
