Carbofuran Applications Fail to Reduce Damage to Seeds and Cones of Scotch Pine in North Dakota and Nebraska
USDA Forest Service, Rocky Mountain Forest and Range Experiment Station, 1983 - Insecticides - 5 pages
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24 and uly 458 tagged cones aborted cones Average cone bird damage Carbofuran applications carbofuran per 2.54 cm inch cone 1 SD cone base cones and seeds cones at Denbigh cones collected Cones damaged cones releasing seeds—No cones retaining seeds—No cones sampled cones were damaged damage to cones damaged by Dioryctria damaged by Dioryctria—No damaged cones aborted Damaged cones releasing Damaged cones retaining DeBarr Department of Agriculture Dioryctria spp disclusa Empty seeds Experiment Station extracted seeds following treatment Forest Service Fort Collins Furadan granules per 2.54 Homing Farm Horning Farm insect damage irrigated Iune Leptoglossus occidentalis liters of water litter lune measured 0 113 mid-May mineral soil Nebraska Number one-tree plots parameter measured percentage of cones plantation Research Rocky Mountain Station rototilled sample cones Scotch pine cones Scotch pine planting Scotch pine trees second-year seed sources seedbug seeds per cone table test tree toxic tree at Denbigh wildlife yield in Scotch