254 Insects and Sprays 



the stems and top of leaves should be examined, 

 but the under side of the leaves and the petals of 

 flowers also should have a careful inspection. 



Insects are divided into two classes with reference 

 to their manner of working on plants: I. Insects 

 which eat the leaves, petals, and stems of plants ; 

 2. Insects which suck the sap from the plant and 

 thus cause its death. 



Stone lime added to arsenate of lead and Paris 

 green will usually prevent the foliage from becoming 

 burned from the poisons. These poisons should 

 never be used on plants which are within the reach 

 of children, and adults should carefully wash their 

 hands after coming in contact with the plants. 



Plant louse can be controlled by spraying the 

 plants on which they are found with strong soap- 

 suds made by boiling half a pound of strong, yellow 

 laundry soap in a gallon of water. The soap 

 should be shredded before putting into the water 

 or it will take a long while for it to dissolve. 



Black leaf 40, purchasable at almost any florist's 

 or seedsman's, diluted in proportion to one part 

 black leaf to 800 parts of water is very efficacious 

 in getting rid of plant louse. 



