-9- 



Prevent outbreaks of 2-spotted mite by including a good miticide in 

 pre-bloom sprays of captan. Kelthane is preferred. It has a long residual 

 life, is not hazardous to handle and is of some value also against the 

 cyclamen mite. 



For outbreaks of 2-spotted mite that do occur after bloom , malathion 

 and TEPP (BE Cy^JREFUL with TEPP) are the only materials available. Follow 

 label directions as to use near harvest. 



* ■>'( ■* Vf * I'c * •>'( •>'( Vf i< it i< * Vf Vf * * * Vf * * *• * * •>!? * * 



New Materials may be given an Experimental Label and a Temporary Tol- 

 erance. Representatives of commercial firms and state or other official 

 workers may suggest that you try certain new materials that have such an 

 Experimental Label. 



Such labels are given to manufacturers with the understanding that the 

 material may be sold or given to growers for trial use under supervision . 

 You, as a grower, are cooperating in a field trial of the material. Obser- 

 vations on its performance that are made by you and by official or commer- 

 cial investigators or Extension personnel will help determine the value of 

 the material in the pest control program. 



Fruit treated according to directions on an Experimental Label may be 

 sold through regular channels. Following tests of materials not yet labelled , 

 even for Experimental use , treated fruit should not be sold for food. 



— E. H. Wheeler 



I I I I I I I I I I I I I I I I 



NETJ SHOTGUN SHELL EFFECTIVE AGAINST NUISANCE BIRDS 



Several sound devices that produce frightening noises have been used in 

 an attempt to move nuisance birds . The device known as an acetylene exploder, 

 operated either from calcium carbide or an acetylene tank, produces deafening 

 reports. 



A more recent development is a shotgun shell, in 12 gauge only, contain- 

 ing an inner exploding cartridge which is impelled by the powder charge in 

 the shell. The inner cartridge has a fuse which ignites when the shell is 

 fired, causing the cartridge to explode at a distance of 100 to 200 yards 

 away. Thus, the 12 gauge shell produces an explosive report similar to one 

 from a regular 12 gauge shotgun shell. This is followed by a loud, sharp 

 crack sound from the inner cartridge when it explodes. The second explosion 

 occurs in raid-air if the shell is given the correct trajectory. 



The new exploding shells are very good in frightening birds from agricul- 

 tural crops when properly used. Our experience with the shells indicates that 

 they may be particularly effective in conjunction with the acetylene exploder 

 in certain situations. At present the shells, kno\^m as "shell crackers", are 

 being manufactured in Japan and distributed by a company in the United States. 



