Ecological Agriculture Projects Logo

EAP Publications | Virtual Library | Magazine Rack | Search | What's new

Join the Ecological  Solutions Roundtable



RONALD J. PROKOPY Department of Entomology, University of Massachusetts Amherst. MA 01003


From 1981 to 1984, a low-spray management program was employed against injurious arthropods on the 40 disease-resistant apple trees in my experimental orchard in Massachusetts. The program consisted of an annual early-season application of petroleum oil followed by 2 applications of phosmet (I at petal fall and another 10-14 days later). Visual traps were used to suppress Rhagoletis pomonella flies. For all years combined. a mean of 89.7% of fruit sampled at harvest in this orchard was free of insect injury compared with 0% uninjured fruit on neighboring unsprayed trees. Populations of foliar-feeding pests never reached injurious levels.

Copyright 1985.

Info Request | Services | Become EAP Member | Site Map

Give us your comments about the EAP site

Ecological Agriculture Projects, McGill University (Macdonald Campus)
Ste-Anne-de-Bellevue, QC,  H9X 3V9 Canada
Telephone:          (514)-398-7771
Fax:                     (514)-398-7621


To report problems or otherwise comment on the structure of this site, send mail to the Webmaster