Tabic 3. Insect damiige Id Glohavcn peaches under 

 differenl pesticide Ireatmenl schedules Fruil were 

 harvested on September 3. Each treatment included 

 three trees in each of lour replications. For 

 assessment, 100 peaches were harvested from each 

 tree. ' 



Treatment 



Slink hug 

 damage (%) 



Japanese beetle 

 damage (%) 



Full spray 

 Reduced spray 

 Low spray 

 No spray 



9a 

 12a 

 12a 

 12a 



23 b 



31 a 



16 be 



9c 



^Means within columns not followed by the same 

 letter are significant at odds of 15:1. 



Clearly Ihiscxpcriincnl shuuld be repeated, 

 perhaps with closer attention paid to timing of 

 insecticides. Weekly scouting of plots would 

 help to determine more accurately when each 

 insect pest is present, and whether timing of 

 insecticide applications coincides with the tim- 

 ing required for fungicide applications. Closer 

 attention to pest status would also help to ex- 

 plain how these pests enter and move within 

 the orchard. 



It is obvious from this data, however, that 

 both stink bugs and Japanese beetles can have 

 a substantial effect on fruit quality at harvest. 

 Better timing of insecticide treatments and al- 

 ternative pesticides or methods of control could 

 impact results in another year. 



«1^ %t^ m^A %!• %!• 

 rj* #^ ry% rj% rj^ 



Fruit Notes, Volume 63 (Number 2), Spring, 1998 



15 



