Downy mildew of lettuce controlled by systemic fungicide

Paulus, A; Nelson, J; Snyder, M; Gafney, J

Downy mildew of lettuce controlled by systemic fungicide

Authors

Albert O. Paulus
Jerry Nelson
Marvin Snyder
Judy Gafney

Authors Affiliations

Albert O, Paulus is Plant Pathologist Cooperative Extension, University of California, Riverside; Jerry Nelson is Staff Research Associate Cooperative Extension, University of California, Riverside; Marvin Snyder is Farm Advisor and Judy Gafney is Extension Assistant, Santa Barbara County.

Publication Information

Hilgardia 31(12):9-9. DOI:10.3733/ca.v031n12p9. December 1977.

PDF of full article, Cite this article

Abstract

Downy mildew of lettuce, caused by the fungus Bremia lactucae, can cause considerable damage especially to early spring and late fall crops in coastal areas. It is favored by cool, moist weather and may occasionally cause economic damage in the Imperial Valley during the winter lettuce season. Trials were initiated in the summer and fall of 1976 to compare new systemic fungicides from Ciba Geigy with commonly used materials.

Also in this issue:

Are we listening?

4-H community pride program

A newly imported California red scale parasite from Saudi Arabia

Aphid control on chrysanthemums and carnations

Research aids christmas tree industry

Survival of potato-blackleg and soft-rot bacteria

Index

Response of Tokay grapes to spray applications of 2,4-D