105 



various control strategies. Extensive validation of the individual subcom- 

 ponents as well as the composite model are documented. The model, written in 

 APL, uses 64K of core and simulates a season from first bud initiation to har- 

 vest in c. 1/sec on the AMDAHL 470 V/6 and IBM 370/168 computers. The computer 

 cost of such an analysis is less than $2. 



D 



195. Dadd, R. H. 1973. Insect nutrition: current developments and metabolic 

 implications. Annu. Rev. Entomol. 18: 381-420. 



Though there are many obvious lacunae in current systematic insect nutri- 

 tion, nevertheless prime interest follows two other directions. One is to- 

 ward ecological nutrition: the attempt to relate what the insect (or popu- 

 lations of insects) requires to what its natural environment can provide 

 as food. This ultimately involves not only a knowledge of an insect's 

 nutritutional needs, phagostimulatory behavior, digestive and absoptive 

 abilities, etc., but also a matching knowledge of the chemistry of potential 

 natural foods, and considerations of the flux of both these and the insect's 

 varying requirements at different seasons and life stages. The other direc- 

 tion of interest is the application of nutritional findings to clarify 

 netabolic process and vice versa. In this survey of recent nutritional 

 literature (mainly past 1963 and necessarily selective) I attempt to improve 

 some form by discussing the subject from a metabolic point of view. 



196. Daum, R. J.; Cast, R. T.; and Davich, T. B. 1969. Marking adult boll 

 weevils with dyes fed in a cottonseed oil bait. J. Econ. Entomol. 

 62: 942-943. 



Information needs on the behavior and movement of insect populations have 

 prompted a search for mass marking field populations. Seventeen dyes were 

 uniformly mixed at 3% with a cottonseed oil bait, fed to adults and examined 



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