Table 5. 



Zk - 



Please rate the following "selling point" of IPM according to how 

 important they are to you. 



IPM Grower 



Non-IPM Grower 



Safe use of pesticides 95.1- 



Increase farm profits 95.0 



Control crop yield and quality loss 9'*. 7 



Reduce environment damage 100.0 



Unbiased opinion of pest problems 86.1 



Use of natural enemies for pest control 89.7 



Free management skills for use elsewhere 56.7 

 More positive image with neighbors and consumers 83.8 



^Percentage of respondents answering "very useful" or "useful". 

 Orchard size 



86.9* 



75.7 



65.8 



92.1 



75.0 



76.3 



62.9 



75.7 



The size of the orchard turned out to be an important factor in the 

 average amount of pesticide used and in per acre production. In Table 6, 

 respondents were considered by size instead of IPM use. There was a clear 

 decrease in the number of insecticide and fungicide applications with 

 greater orchard size; miticide use was about the same for all groups; and 

 the increased use of herbicides was to be expected, given that smaller 

 growers are much more likely to mow. (This decrease in herbicide use may 

 partially account for the lower pesticide cost per acre experienced by small 

 growers.) The increased production per acre in larger orchards was also not 

 unexpected. But the fact that growers under 20 acres used 25^ more insec- 

 ticide applications than large growers was most surprising at first sight. 



Table 6. Average pesticide costs, number of applications, and production 

 per acre by orchard size. 



<20 Acres 



21-60 Acre 



Cost per Acre $133. i»4^ 



Number of Insecticides 9.7 



Number of Miticides 1.7 



Number of Fungicides 12. 'i 



Number of Herbicides 0.6 



Bushels Per Acre 275.87 



$258.64* 



9.2 



2.1 



12.3 



0.9 



416.96 



^Average response in each category. 



There are several reasons to believe that small growers have had less 

 exposure to Integrated Pest Management than large growers, and that this may 

 be related to their increased pesticide use. For a variety of reasons, 



