Bayer CropScience plans to slash about 300 jobs as it closes or downsizes manufacturing facilities in West Virginia and Georgia.
The move is part of a shift by the company away from older insecticides to newer agriculture protection products. Bayer CropScience reached an agreement last summer with the U.S. Environmental Protection Agency to phase out its Temik brand insecticide, making the production of its active ingredients unnecessary.
"The EPA did some new risk assessments, and they felt there was some concern" about Temik, said Bayer CropScience spokesman Jack Boyne. "We disagreed with some of their calculations, but we agreed to phase out the product."
Bayer CropScience, a subsidiary of the German conglomerate Bayer, employs about 550 people at its North American headquarters in Research Triangle Park, and at other local operations in Morrisville and Clayton.

Talecris Biotherapeutics has set a date next month for shareholders to vote on its proposed $4 billion takeover by Grifols of Spain, although the deal still could run into roadblocks with U.S. antitrust regulators.
Novozymes, a Danish company that employs more than 465 people at its North American headquarters in Franklinton, will acquire the crop science subsidiary of a German conglomerate, continuing to beef up its bioagriculture business.
A Cary-based nonprofit spun out of the N.C. Biotechnology Center released a set of guidelines today to help promote responsible global use of genetically modified trees.
One of the Triangle's most experienced pharmaceutical industry executives will join Elan Corp. as chairman of the Irish biotechnology company's board.
Gentris, a Morrisville company helping drug makers develop medicines based on patients' genetic differences, has recruited a top UNC researcher in the field.