Insect Attacks on and Mortality of Slash and Longleaf Pines Treated with Paraquat to Induce Lightwood Formation PDF Download
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Author: Gerald D. Hertel
Publisher:
ISBN:
Category : Herbicides
Languages : en
Pages : 20
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Author: Gerald D. Hertel
Publisher:
ISBN:
Category : Herbicides
Languages : en
Pages : 20
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Author: Edward P. Merkel
Publisher:
ISBN:
Category : Insecticides
Languages : en
Pages : 12
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Abstract: One- and two-percent concentratons of lindane, carbaryl, chlorpyrifos, and chlorpyrifos-methyl were tested for their efficacy in reducing or preventing bark beetle and wood borer attacks in north Florida slash pine stands that had been treated with paraquat. Results from a series of five field experiments showed that the cumulative mortality of trees unprotected by insecticides 1 year after the indicated month of paraquat application was 63 percent (June1976), 15 percent (November 1976), 13 percent (February 1977), 83 percent (April 1977), and 40 percent (June 1977). Lindane reduced tree mortality by 50 to 100 percent whereas the other insecticides produced erratic results among experiments. Results also indicate that the season of paraquat treatment is correlated with insect infestation, tree mortality, and subsequent efficacy of insecticides. Recommendations are made for combining pest management procedures with lightwood production techniques that will result in the highest oleoresin yields.
Author: Earle P. Jones
Publisher:
ISBN:
Category : Forest thinning
Languages : en
Pages : 632
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Author:
Publisher:
ISBN:
Category : Forest products
Languages : en
Pages : 160
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Author: Eugene Czuhai
Publisher:
ISBN:
Category : Prescribed burning
Languages : en
Pages : 862
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Author: William R. Harms
Publisher:
ISBN:
Category : Loblolly-pine
Languages : en
Pages : 574
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Author: Southeastern Forest Experiment Station (Asheville, N.C.).
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 968
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Author:
Publisher:
ISBN:
Category : Government publications
Languages : en
Pages : 1066
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Author: Jack Stubbs
Publisher:
ISBN:
Category : Longleaf pine
Languages : en
Pages : 60
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Author:
Publisher:
ISBN:
Category : Forests and forestry
Languages : en
Pages : 848
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