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Full-Text Articles in Entomology
Tb124: Chemical Control Of Balsam Twig Aphid, Midarus Abietinus Koch (Homoptera: Aphididae), R. L. Bradbury, E. A. Osgood
Tb124: Chemical Control Of Balsam Twig Aphid, Midarus Abietinus Koch (Homoptera: Aphididae), R. L. Bradbury, E. A. Osgood
Technical Bulletins
This study was initiated to provide Christmas tree growers with a selection of insecticides capable of effective control of balsam twig aphid (Mindarus abietinus Koch) on balsam fir. Low rates of active ingredients were tested to assure minimal environmental impact and reduced chemical costs
Tb123: Experimental Application Of B.T.I. For Larval Black Fly Control: Persistance And Downstream Carry, Efficacy, Impact On Non-Target Invertebrates And Fish Feeding, K. Elizabeth Gibbs, Francis C. Brautigam, Constance S. Stubbs, Larry M. Zibilske
Tb123: Experimental Application Of B.T.I. For Larval Black Fly Control: Persistance And Downstream Carry, Efficacy, Impact On Non-Target Invertebrates And Fish Feeding, K. Elizabeth Gibbs, Francis C. Brautigam, Constance S. Stubbs, Larry M. Zibilske
Technical Bulletins
In the summer of 1985 a field experiment was conducted in the Sugarloaf area of Maine on the use of B.t.i. to reduce the numbers of black fly larvae in the Carrabassett River and a tributary stream. The objectives were to determine the rate of application necessary to produce an acceptable reduction in black fly larvae, to study the fate and persistence of B.t.i. in a stream following application, to determine the impact of B.t.i. on the abundance and drift of non-target stream insects and on the feeding success and diet composition of fishes in the treated streams.
Patterns Of Tree Mortality During An Uncontrolled Spruce Budworm Outbreak In Baxter State Park, 1983, Akira Osawa, Charles J. Spies Iii, John B. Dimond
Patterns Of Tree Mortality During An Uncontrolled Spruce Budworm Outbreak In Baxter State Park, 1983, Akira Osawa, Charles J. Spies Iii, John B. Dimond
Technical Bulletins
A forest inventory of Baxter State Park, Maine, was done during the summer and fall of 1983 to study the patterns of mortality in balsam fir and in the red-black spruce complex during an uncontrolled spruce budworm outbreak. The volume of trees that died during the outbreak was estimated at 40% of the original quantity. Fir mortality was consistently greater than that of spruce. The percentage mortality of spruce was always greater in the higher elevation zone than in the lower elevation zone. Percentage mortality of fir and spruce showed inconsistent patterns in relation to the proportion of hardwood species …
An Annotated List Of The Butterflies Of Kansas, Charles A. Ely, Marvin D. Schwilling, Marvin E. Rolfs
An Annotated List Of The Butterflies Of Kansas, Charles A. Ely, Marvin D. Schwilling, Marvin E. Rolfs
Fort Hays Studies Series
This provisional list summarizes the information currently available on the distribution of the butterflies of Kansas. Presently, this information is widely scattered in the literature and numerous collections and is not readily available to many interested parties. The accompanying maps also demonstrate the many gaps in our present information and will hopefully stimulate further collecting and the production of a more complete list in the near future. This paper is based primarily on collections made by the authors during an intensive statewide survey begun in 1979. It is organized around the "county record," usually a voucher specimen housed at Fort …