Contents

06 February 1987
Vol 235, Issue 4789

About The Cover

Foliar symptoms of verticillium wilt in cotton, characterized by chlorosis and necrosis between the main veins. Cotton seedlings that had been exposed to spider mites were less likely to develop symptoms of verticillium wilt than unexposed control seedlings. See page 678. [Jack Kelly Clark, Cooperative Extension, University of California, Davis 95616]