Pests host plant resistance

Most biological and cultural pest controls return greater profits than pesticides. For example, biological pest controls are reported to return from 30 to 300 per dollar invested in control (16). Various cultural controls like host plant resistance, crop rotations, and tillage, also return 30 to 300 per dollar Invested in pest control (16). 

B. in "Host Plant Resistance to Pests", ACS Syii5>oslum Series, No. 62 Hedin, P. A., Ed. American Chemical Society Washington D. C., 1977, p. 179. 

In the coevolutionary interactions of plants and animals, lipids play a major role. They function as ecomones (pheromones, allomones and kairomones) and have been classified by their function. Host plant resistance is partially dependent on these chemical constituents. Lipids may be subdivided into two types. Volatile lipids are generally involved in long distance interactions whereas non-volatile lipids are generally involved after the insect has contacted the host plant. Several examples of each are reviewed. Utilization of these compounds to promote increased host plant resistance could be accomplished by selection of plants rich in allomones, lacking kairomones for a particular pest or those with inducible systems of defense. Another approach is to isolate the defensive compounds of one plant and apply them to crop plants. Trap crops could also be used to lure insects away from other crops. 

In "Host Plant Resistance to Pests" (P. A. Hedin, ed.) 185-196. Symposium Series No. 62, Amer. Chem. Soc., Washington, 1977. 

Kubo, I. Nakanlshl, K. Host Plant Resistance to Pests, ACS Symposium Series 62, American Chemical Society, Washington, D.C., 1977, 165. 

S. Sadasivam B. Thayumanavan, Molecular Host Plant Resistance to Pests Marcel Dekker Inc. New York, 2003 Chapter 8, pp 196-246. 

I. Kubo and K. Nakanishi. In "Host Plant Resistance to Pests" Hedin, P.A., Ed ACS SYMPOSIUM SERIES No. 62, American Chemical Society Washington D.C. 1977 pp. 165-178. 

---