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Spectra of activity of plant growth retardants against various parasites of one host species
Author(s) -
Smith B. D.
Publication year - 1969
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740200705
Subject(s) - aphid , sphaerotheca , chlormequat , biology , host (biology) , mite , botany , broad spectrum , aphis , plant growth , powdery mildew , chemistry , ecology , combinatorial chemistry
Effects are described of foliar applications of the growth retardants, chlormequat (Cycocel), and N ‐dimethylaminosuccinamic acid (B995), on the major pests and diseases of blackcurrants. These compounds have a wide spectrum of activity; they both reduce the severity of attack by the mite Cecidophyopsis ribis and the aphid Aphis varians but they differ in their effects against the pathogenic fungi, Pseudopeziza ribis and Sphaerotheca mors‐uvae and in their effects on the host plants. Some possible ways in which they may increase plant resistance are discussed.