INJURIOUS INSECTS OF 1903. 105 



Potato, for 



Blight.— Cornell Bui. 188. 1901. 



Strawberry, for 



Leaf-Blight.— Cornell Bui. 188, 1901. 



Tomato, for 



Leaf-Blight.— Cornell Bui. 188, 1901. 



10. Bordeaux Mixture plus Paris Green, etc. — (A Fungicide 



plus an Insecticide.) 

 When there are both insects and plant diseases to com- 

 bat, instead of applying the Bordeaux Mixture alone, or 

 the Paris Green alone, a combination of the two "kills two 

 birds with one stone." In fact, when spraying with the 

 Bordeaux Mixture, even if not sure that injurious insects 

 are present, it is quite safe and desirable to add the insecti- 

 cide. According to the N. Y. State Bui. 220, 1902, although 

 the combination spray stopped the scab to a considerable 

 extent, it caused spotting, yellowing and dropping of the 

 apple leaves in July. The injury, however, was not se- 

 rious. 



Use 4 ounces Paris Green or i gallon Arsenate of Lead 

 (as per formula) in 50 gallons of the Bordeaux Mixture. 



11. Bordeaux Resin Mixture — (See Resin Lime Mixture.) 



12. Bran Mash — (See Arsenic Bran Mash.) 



13. Camphor — (See Naphthaline.) 



14. Carbon Bisulfid — 



This substance is used against a number of insects, 

 and also other animals, which cannot be combatted with 

 internal or even contact poisons. This liquid volatilizes 

 very rapidly, and the gas being heavier than air must be 

 generated from above. It is used with good success 

 against ants, buffalo beetle, clothes moths, museum pests, 

 prairie dogs, stored grain insects, etc. 



For Ants — First find the ant hill ; then with a cane 

 make several holes ten to twelve inches deep, into each of 



