14 



FARMERS BULLETIN 856. 



row type shown in figure 8, which is a thoroughly effective outfit, 

 capable of giving 120 pounds pressure. It will apply any liquid 

 fungicide or insecticide to vegetables, shrubbery, or orchard trees. 

 The cost is $25. It is often possible to secure the services of a local 

 ti-ucker or orchardist Avho has a sprayer, but no one should be de- 

 terred from protecting his garden when an atomizer may be pur- 

 chased for 50 cents or even less. 



The powders may be shaken from a muslin bag tied to a stick, or 

 various forms of dusters, bellows (fig. 9), or blowers may be bought. 



Dry powders are best applied when the leaves are wet with dew. 



GENERAL-CROP PESTS. 



From the standpoint of their food plants, injurious insects may be 

 grouped roughly into two classes: First, those which are choice 

 feeders arid ordinarily attack only a single crop, or crops of a single 

 class, although when they are extremely 

 abundant they may resort to other crops or 

 weeds. Examples are the asparagus beetles 

 and asparagus miner and the large tomato 

 worms, which confine their feeding to plants 

 of a single family. Second, those known as 

 general feeders — insects which are not par- 

 ticular as to their food plants. Some of these 

 devour nearly every form of vegetation that 

 grows in the garden. These include cutworms 

 and other caterpillars* several forms of leaf- 

 beetles and flea-beetles, plant-lice, thrips, 

 blister beetles, and others. When abundant, 

 some of these pests do great damage, sweeping 

 over large areas and ruining entire crops 

 before they can be stopped. 



CUTWORMS. 



Tomatoes, sweet 

 potatoes, and other 

 truck plants, partic- 

 ularly when started 

 under glass, are 

 likely to be injured 

 by cutworms (fig. 10) 

 when transplanted. 

 These appear in 

 great numbers in the 

 spring and early 



