Entomology Commons^™

Day-Degree Methods For Pest Management, Kenneth P. Pruess

Department of Entomology: Faculty Publications

Recommendations are made for reporting day-degree methods which may have practical applications. Standardized thresholds (40, 50, and 60°F, or 5, 10, and 15°C) should be used. Day-degrees may be either sine wave approximations or exact units determined by instrumentation. Methods are proposed for converting current day-degree models to standardized thresholds and, ultimately, to actual day-degrees.

Blueberry Progress Reports, James F. Dill, H Y. Forsythe Jr, Kathy Flanders, Frank L. Caruso, Michael G. Zuck, Mark D. Milam, John M. Smagula, Edward J. Mclaughlin, Warren Hestrom, Mike Goltz, Jeff Risser, Amr A. Ismail, David E. Yarborough, Steven P. Skinner, Delmont C. Emerson

Wild Blueberry Research Reports

The 1982 edition of the Blueberry Progress Reports was prepared for the Maine Blueberry Commission and the University of Maine Blueberry Advisory Committee by researchers with the Maine Life Sciences and Agriculture Experiment Station and Maine Cooperative Extension Service at the University of Maine, Orono. Projects in this report include:

1. Introduction

2. Blueberry IPM Program

3. Guthion Drift Study

4. Control, Biology, and Ecology of Insects

5. Blueberry Diseases: Incidence and Control

6. Physiology and Culture of the Lowbush Blueberry

7. Weed Control in Lowbush Blueberries

8. Pruning Blueberries

Influence Of Cultural Practices On The Sunflower Seed Weevil In South Dakota, Joe V. Gednalske

Electronic Theses and Dissertations

The purpose of this study was to evaluate cultural methods for sunflower seed weevil control. Procedures examined included the influences of tillage methods, crop rotation, date of planting, hybrid maturity, and degree-day units in emerging seed weevil populations. Tillage practices done as both fall and spring treatments including discing, chisel plowing, nobel blading, and moldboard plowing were examined for their effect on larval position in the soil, time of adult weevil emergence, and the number of adults emerging from the soil. Crop rotations were investigated for possible influence on weevil mortality and time of adult emergence. Sunflower planting date and …