An evaluation of the fungicide Triarimol and its effect on powdery mildew of cereals

Abstract

Powdery mildew disease of cereals caused by Erysiphe graminis is an important disease wherever cereals are grown. Reduction in yields of up to 30 per cent has been recorded overseas but similar estimates have not been published in New Zealand. Attempts to control E. graminis by breeding resistant varieties have met with limited success. Chemical control appears to be the most promising method of combating the pathogen and with the introduction of systemic fungicides, economic control of many fungal pathogens, including E. graminis, is now possible. Triarimol, one of the new systemic fungicides is currently under trial in several countries. The ability of triarimol to control E. graminis under New Zealand conditions was investigated.

Keywords

powdery mildew; cereals; fungicides; Triarimol; Erysiphe graminis; plant pathogens; disease control; phytotoxicity; seed treatment; chemical control

Fields of Research

070308 Crop and Pasture Protection (Pests, Diseases and Weeds); 079902 Fertilisers and Agrochemicals (incl. Application); 060704 Plant Pathology; 060505 Mycology

Date

1973

Type

Thesis

Access Rights

Digital thesis can be viewed by current staff and students of Lincoln University only. Print copy available for reading in Lincoln University Library.