194 



covering thoroughly the vines, and also the posts often 

 helps out very much the rest of the season. By adding ar- 

 senate of lead to this spraying mixture it will help take care 

 of the earlier insects. 



Just before the blossoms open, a spraying of Bordeaux 

 and arsenate of lead should be used, covering the bimches 

 thoroughly. This repels, and usually checks, the work of the 

 rose bugs. They like to eat the grape blossoms and are one 

 of the few insects not affected by contact or stomach poisons. 

 Another spraying ten days later is needed, and occasionally 

 a fourth sprajnng. If anthracnose is present, as much as 

 can be should be cut out in the winter pruning, and the 

 vines should be treated when dormant with iron sulphate 

 solution. It may be put on with a sponge,, or brush. 



The chief diseases of the grape are anthracnose, black 

 rot, downy and powdery mildew. 



The chief insects infecting the grape are the flea beetle, 

 grape fruit worm, leaf-hopper, grape-root worm, and rose- 

 bug. These are all difficult insects to kill. By mixing mo- 

 lasses or glucose with the spray mixture, sprayed when the 

 insects are feeding, it Avill usually control them. 



The benefit of proper spraying is often more noticeable 

 in the crop of the following year than at the time of applica- 

 tion. .The leaves staying on longer and the wood ripening 

 up better, thus strengthening the vine for another year. 



The tobacco spray — Black-leaf-40, is one of the best for 

 the leaf hopper and should be applied when they are in the 

 nymph stage, about the middle of Jul3^ 



Lime and sulfur should not be used on grapes as it 

 causes severe injury to leaves and fruit. 



I have a spray barrel, mounted on mowing machine 

 wheels, to which are attached a heavy pair of shafts. By 

 having a "Y" on the end of a short rod with two angle 

 IViend nozzles, the man driving can keep up fairly high 

 pressure, which gives a pretty efficient spraying to one side 

 of a row, moving along as a horse ordinarily walks. 



