. Cooperative economic insect report. Insect pests Control United States Periodicals. Survey Methods 49 12. If thirteenth tree is dead, keep sampling space the same for taking next sample, but take sample from nearest living tree. 13. Record direction traveled in strip, direction plantation worked from, township, range, section and 40. 14. To take first sample, go along plantation 5 chains before starting first strip, then after first strip completed, take strips every 10 chains. 15. Attach to each sheet a mimeographed map of plantation being worked. On this map mark location, number and direc
. Cooperative economic insect report. Insect pests Control United States Periodicals. Survey Methods 49 12. If thirteenth tree is dead, keep sampling space the same for taking next sample, but take sample from nearest living tree. 13. Record direction traveled in strip, direction plantation worked from, township, range, section and 40. 14. To take first sample, go along plantation 5 chains before starting first strip, then after first strip completed, take strips every 10 chains. 15. Attach to each sheet a mimeographed map of plantation being worked. On this map mark location, number and direction traveled for each sample strip. 16. Use separate sheet for recording information from each sample strip. 17. Record in remarks column any abnormal condition of trees, or any insects noticed between sample •new growth - use this portion of twig for estimating number of immature scales, number of predators Materials Required for Survey of Pine Tortoise Scale 1. Pole pruners (5' aluminum sections 2-1/2 feet cutting head). 2. Mimeographed survey form. 3. Table to show appearance of immature scales. 4. Mimeographed map of plantation. 5. Spring-back aluminum binder for holding forms. (R. D. Shenefelt and P. A. Jones, University of Wisconsin).. 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. Bureau of Entomology and Plant Quarantine; United States. Plant Pest Control Branch; United States. Plant Pest Control Division; United States. Animal and Plant Health Inspection Service. Plant Protection and Quarantine Programs. Washington, D. C. : U. S. Dept. of Agriculture, Agricultural Research Administration, Bureau of Entomology and Plant Quarantine
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