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Tb96: A Prediction Model For Maine's Potato Production, Alan S. Kezis, Michael Hammig, Marc Ribaudo
Tb96: A Prediction Model For Maine's Potato Production, Alan S. Kezis, Michael Hammig, Marc Ribaudo
Technical Bulletins
For a state whose economy is significantly dependent on the health of the potato industry, a mechanism to forecast the expected level of production with a reasonable degree of accuracy could be a valuable tool for economic analysis and planning. The objective of this study is to develop an econometric model to predict production using selected data which are available well before the crop is harvested.
Tb89: Motor And Elective Activity Of The Duodenum Of Broilers, C. Mba-Mezoui, F. H. Bird, C. B. Chawan
Tb89: Motor And Elective Activity Of The Duodenum Of Broilers, C. Mba-Mezoui, F. H. Bird, C. B. Chawan
Technical Bulletins
Recordings of pressure changes and electrical activity from the proximal small intestine of seven to eight-week-old unanesthetized chickens were made with chronically implanted transducers. The recordings were used to quantitate and determine the relationships among basic electric rhythm (BER), spike potentials (SP), and intestinal contractions (IC) of the duodenum. The omnipresence of the BER was demonstrated. SP were recorded whenever IC were detected. SP numbers and amplitudes were directly related to the strength of IC. Acetylcholine caused a general increase in the number and amplitude of both SP and IC. Epinephrine completely abolished both SP and IC. The results suggest …
Tb80: Scanning Electron Microscopy Of Insects: Techniques For The Novice, G. P. Hosking, N. P. Kutscha, F. B. Knight
Tb80: Scanning Electron Microscopy Of Insects: Techniques For The Novice, G. P. Hosking, N. P. Kutscha, F. B. Knight
Technical Bulletins
The scanning electron microscope (SEM) has been used to detail the morphology of small insects; however, it is often difficult for the novice to obtain acceptable results without time-consuming and costly experimentation. This brief paper outlines some of the techniques and problems encountered in an examination of the balsam bark beetle Pityokteines sparsus (Le Conte ) and the hymenopterous parasitoid Brachymeria intermedia (Nees). The information presented herein is mainly for the benefit of individuals wishing to use the SEM but having little or no experience concerning the special problems associated with the photography of insect specimens, and may form a …
Tb92: The Aquatic Insects Of The St. John River Drainage Of Aroostook County, Maine, T. M. Mingo, David L. Courtemanch, K. Elizabeth Gibbs
Tb92: The Aquatic Insects Of The St. John River Drainage Of Aroostook County, Maine, T. M. Mingo, David L. Courtemanch, K. Elizabeth Gibbs
Technical Bulletins
In September, 1977, an aquatic insect survey of the St. John River drainage was conducted. The objectives were to provide information on the existing fauna in the area of the proposed Dickey-Lincoln School Lakes hydro-electric project and to form the basis for predicting changes in the fauna should implementation of the proposed project take place. The results of that survey form the basis for this bulletin. The only additional information on the fauna of this river comes from a survey of organisms in the gut content of brook trout taken from the St. John River drainage between the Little Black …
Tb95: The Black Flies Of Maine, L. S. Bauer, J. Granett
Tb95: The Black Flies Of Maine, L. S. Bauer, J. Granett
Technical Bulletins
Black flies have been long-time residents of Maine and cause extensive nuisance problems for people, domestic animals, and wildlife. The black fly problem has no simple solution because of the multitude of species present, the diverse and ecologically sensitive habitats in which they are found, and the problems inherent in measuring the extent of the damage they cause. To improve the understanding of the nature of the black fly problem, an inventory of black fly species and habitats was made throughout the state. Previous black fly surveys in Maine have been geographically limited. In the present survey, black flies were …
Tb93: The Impact Of Price Deregulation And Changes In Assembly And Processing Costs On The Marketing Of Milk In Maine, Daniel Taylor, Gregory White, Homer Metzger, Alan Kezis
Tb93: The Impact Of Price Deregulation And Changes In Assembly And Processing Costs On The Marketing Of Milk In Maine, Daniel Taylor, Gregory White, Homer Metzger, Alan Kezis
Technical Bulletins
Simulation of marketing situations is a means of better understanding the impact of various changes which may or may not come about in an industry. This report reflects the impact of several assumptions about market situations in the dairy industry, many of which depart from existing conditions. A major assumption was that of complete price deregulation. The results are not considered final, but are offered as indicators of the impact of changes which may take place in the marketing of mil k in Maine.
Tb90: The Effects Of Spraying With Sevin-4-Oil® On Insect Pollinators And Pollination In A Spruce-Fir Forest, E. R. Miliczky, E. A. Osgood
Tb90: The Effects Of Spraying With Sevin-4-Oil® On Insect Pollinators And Pollination In A Spruce-Fir Forest, E. R. Miliczky, E. A. Osgood
Technical Bulletins
The use of chemical insecticides is presently accepted as the most effective means of keeping damage by spruce budworm in Maine at an acceptable level. Unfortunately, broad-spectrum chemicals such as Sevin-4-oil® affect non-target organisms as well, and this can have serious consequences. The significance of these effects can only be determined by monitoring populations of non-target organisms and assessing the overall impact on the environment. This study was undertaken to determine the effects of operational spraying of carbaryl insecticide, Sevin-4-oil® on the abundance of insect pollinators in a spruce-fir forest.