i62 INSECTS OF EC0N0:MIC IMPORTANCE 



migrating from another adjoining house; they lay 

 their eggs in the cracks of beds and multiply in 

 great numbers ; they are suspected of carrying dis- 



CoNTROL — Use iron bedsteads; paint cracks in 

 beds with gasoline, kerosene, or benzine ; pour boil- 

 ing water on the beds if not afraid of injuring var- 

 nish; fumigate with sulphur, 2 pounds to 1000 cubic 

 feet ; fumigate with hydrocyanic acid gas. 



Circ. 36, Clothes IMoths. U. S. Dept. Agr., Bii. of Ent. 

 Circ. 71, Housefly. U. S. Dept. Agr.. Bii. of Ent. 

 Circ. 108, House fleas. U. S. Dept. Agr., Bu. of Ent. 

 Circ. 5, Carpet Beetles. U. S. Dept. Agr., Bu. of Ent. 

 Circ. 34, Ants. U. S. Dept. Agr., Bu. of Ent. 

 Circ. 13, Mosquitoes. U. S. Dept. Agr., Bu. of Ent. 

 Bull. 4, Household Insects. U. S. Dept. Agr., Bu. of Ent. 

 Ear's' Bull. 679, Houseflies. U. S. Dept. Agr., Bu. of Ent. 

 Book. Insects Injurious to the Household and Annoying to Man, 

 Glenn W. Herrick. 



SPRAYING SCHEDULE FOR APPLES 



Dormant spray. — As the buds begin to shozv green 



Lime-sulphur (32° Baume) diluted i to 8, for San Jose 

 scale, oyster-shell scale, and blister mite. If aphids are 

 present this application should be delayed until just as the 

 buds are bursting ; at that time the young lice are clustering 

 on the opening buds. 



*'Black leaf 40" tobacco extract should be added, •)4 pii'^t 

 to 100 gallons of lime-sulphur solution. 



Summer sprays 



(A) As the buds begin to show pink 



Lime-sulphur (32° Baume) diluted i to 40, for apple scab; 

 from 4 to 6 pounds of arsenate of lead should be added to 

 100 gallons of lime-sulphur, for bud moth and case-bearers. 



(B) As the last of the petals are falling 



Lime-sulphur (32° Baume) diluted i to 40, for apple scab; 

 from 4 to 6 pounds of arsenate of lead should be added to 

 100 gallons of lime-sulphur, for codling moth. This is the 

 most important spray for the control of the codling moth. 



(C) Three zveeks after the petals fall 



Lime-sulphur (32° Baume) diluted i to 40, for apple scab; 



