7 Antifeeding Compounds for Insect Control D O N A L D P. W R I G H T , JR.
Downloaded by UNIV OF ARIZONA on December 16, 2012 | http://pubs.acs.org Publication Date: January 1, 1963 | doi: 10.1021/ba-1963-0041.ch007
Agricultural Division, American Cyanamid Co., Princeton, N.J.
W h i l e antifeeding compounds are not new in the pest control field, having been used as
mothproofing
materials and animal
repellents for many years, their use for the protection of crops is a recent innovation. Beneficial insects are not harmed, feeding damage is more limited than with conventional
methods, the
mammalian
toxicity is generally lower, and the approach is compatible with biological or chemical
control.
O n the other
hand,
good coverage is required, new growth is not protected as it expands, and piercing-sucking or penetrating usually controlled.
insects are not
T h e advantages a n d
limitations of the antifeeding are
illustrated
approach
by laboratory and field
tests with antifeeding compound 24,055, 4'-(dimethyltriazeno)acetanilide.
^ n antifeeding compound can be defined as a compound which will prevent the feeding of pests on a treated material, without neces sarily killing or repelling them. It is not a repellent, for insects are neither driven away nor kept away by such compounds, nor is it an anorexient, since the appetite of the pest is not affected. "Gustatory repellent" comes close to the above meaning, but the word "repellent" has been so used and misused in the past as to render it ambiguous, even when modified. Dethier (1) recognized this problem, and sub sequently proposed a number of terms to cover the different types of 56
In New Approaches to Pest Control and Eradication; Hall, S.; Advances in Chemistry; American Chemical Society: Washington, DC, 1963.
Downloaded by UNIV OF ARIZONA on December 16, 2012 | http://pubs.acs.org Publication Date: January 1, 1963 | doi: 10.1021/ba-1963-0041.ch007
WRIGHT
Anrifeeding Compounds for Insects
57
action commonly embraced by the word "repellent." Under his terminology, anrifeeding compounds would be called "feeding de terrents." In principle, anrifeeding compounds have been known for a number of years. Although there has been no prior use for the pro tection of crops from insects, such compounds have been used else where, primarily in mothproofing. As early as 1928, I. G . Farbenindustrie was using Eulan New, sodium salt of bis-[a,a-(3,4-dichloro2-hydroxyphenyl)]-
