268 INSECTS INJURIOUS TO STAPLE CROPS. 



of water, and when sprayed, it would be well to spray it 

 with Bordeaux mixture, which will prevent various fun- 

 gous diseases, and with which Paris green can be used 

 much stronger without danger of burning the foliage; or 

 it may be ajoplied dry by mixing with from ten to twenty 

 parts of flour or plaster, dusting it on in early morning, 

 while the dew is still on the plants. Any other arsenical 

 poison will prove equally effective, if used at the proper 

 strength. 



