- 3 - 



Since blueberry maggot flies lay their eggs during the picking season of the 

 cultivated blueberry, rotenone sprays or dusts are favored for controlling maggot, 

 because of its safetyo A 2% rotenone di-ist applied by airplane at the rate of 15-20 

 pounds per acre has given satisfactory control. This can be applied by ground dustei* 

 also, A spray made up with S pounds of ii-5$ rotenone wettable powder in 100 gallons 

 of water and applied at the rate of 200 gallons per acre will also give satisfactory 

 control, 



4HH{W.3B,Tomlinson, Jr, 



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IS GRASS INJURING YOUR RASPBERRY YIELD? 



Witch or Quack grass is frequently a serious problem 

 in an established red raspberry planting. This and other 

 grasses have been satisfactorily controlled in the plant- 

 ing of Latham and Taylor raspberries according to recent 

 reports from Michigan, A fall application (late October) 

 of Chloro-IPG at the rate of 5-8 l^So reduced the grass 

 stand by 68 and 76 percent in 1953 and 195U respectively. 

 This reduction in grass resulted in increased yields of 

 fruit of 30-UO percent. Eight pounds of actual Chloro- 

 IPC should be used in 100 gallons of water and since only 

 the row-areas were sprayed, it should cover about 3 acres 

 with 8 feet row spacing. For the home gardener that means 

 about one ounce of actual Ghloro-IPC in one gallon of 

 water to cover a single I4O foot row not over three feet 

 wide, 



iH«t-A,P,French 



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SPECIAL PEST CONTROL MESSAGES 



from University of Massachusett s' 



Special pest control messages to gruit growers, market gardeners, and other 

 crop producers are now being issued for radio broadcast twice each Vireek, These 

 messages are prepared by Ellsworth H, f/heeler, entomologist, and Constantine J, 

 Gilgut, plant pathologist at the University of Hfeissachusetts in Amherst, This is 

 the fourteenth year such special messages have been issued. 



Messages are scheduled for release each Tuesday and Friday, and will continue 

 into July or August when the pest control season is pretty well over. Should weather 

 corditions warrant, extra messages will be prepared. The first message was issued 

 on April 15, 



Following is a list of radio stations cooperating in special pest control 

 broadcasts and the approximate time when these messages can be heard: 



