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Full-Text Articles in Physical Sciences and Mathematics
Survey Of Northeastern Hop Arthropod Pests And Their Natural Enemies, Lilian B. Calderwood, Scott A. Lewins, Heather M. Darby
Survey Of Northeastern Hop Arthropod Pests And Their Natural Enemies, Lilian B. Calderwood, Scott A. Lewins, Heather M. Darby
College of Agriculture and Life Sciences Faculty Publications
The commercial production of hops (Humulus lupulus L.) in the northeastern United States is on the rise due to demand from local breweries. Several arthropod pests are economically damaging to hop yield and quality. Due to climate and landscape differences between traditional and resurging hop-growing regions, there is a need for region-specific integrated pest management (IPM). We first review hop pest and natural enemy biology and management strategies. Then the phenology, abundance, and peak date of arthropod pests scouted in seven Vermont hop yards is reported. Documentation of natural enemy abundance is also reported. Our 3-yr survey indicated that hop …
Effectiveness Of Nutrient Management Plans On Vermont Dairy Farms, Heather Darby, Philip Halteman, Debra Heleba
Effectiveness Of Nutrient Management Plans On Vermont Dairy Farms, Heather Darby, Philip Halteman, Debra Heleba
College of Agriculture and Life Sciences Faculty Publications
A nutrient management plan (NMP) is a tool that helps livestock farmers optimize crop nutrient use. A survey of Vermont dairy farmers was conducted to learn about farmers' implementation of and perceptions about the effects of NMPs. Results showed that 46% of the 301 respondents had NMPs, particularly large and medium size operations. The majority followed the plans most of the time (barring weather and other constraints). The study revealed that NMPs affected total perceived fertilizer use and adoption of conservation practices. It showed that the person(s) updating the NMP affected the frequency to which the plan's recommendations were consulted.