Xl DEPARTMENT EEPORTS. 



were killed. Applied to cabbage plants about the stems, as used to destroy 

 the maggots; one to eighteen always killed the plants; one to twenty-seven 

 killed half the plants and injured all ; one to fifty-four killed no plants but 

 weakened all ; one to one hiindred and eight did no perceptible harm. 



Applied to young radish plants about the stems the carbolic acid emulsion 

 one to thirty strong killed many and damaged all. The liquid was also applied 

 to the foliage of the cherry, apple, apricot and currant with the following 

 results : One to eighteen killed apple foliage entirely. The foliage of apple 

 cherry, and red currant were respectively treated with the emulsion, one to 50, 

 one to 75 and one to 100. The first blighted the leaves badly of all, but injured 

 the currant most. The second damaged the currants cosiderably, but the 

 apple and cherry but little. The third did no damage to the apple and cherry, 

 and but little to the currant. Applied one to 100 on the leaves of the apricot 

 it caused them to wilt some, but did no lasting harm. 



A large patch of cabbages some distance from where cabbages had been 

 previously grown, were treated extensively with the preceding insecticides, alsO' 

 with tobacco decoction, tobacco dust, California pyrethrum, Paris green and 

 several other insecticides, using different strengths. As noiie of the cabbages in 

 this patch were injured by maggots, the experiments were of no value, except 

 to show that the application did not harm the plants. 



^TURPENTINE EMULSION. 



This was prepared the same as the kerosene emulsion. 



This liquid one to ten strong, was applied to the currant slug, {Nemafuf^ 

 Ventricosus, King), cabbage caterpillar (Pieris rapcB, Schrcmk), and the 

 cherry plant louse {Aphis Cerasi, Fahr.). The application destroyed the 

 young of the first two species, but not the larvae that were nearly matured. 

 The cherry plant lice were nearly but not all destroyed. The application was 

 very thorough. The same liquid was applied to the pig weed aphis. The lice 

 were nearly all killed, and the plants much injured. 



Effects of Turpentine Emulsion upon Foliage. 



This emulsion is less damaging to foliage than even kerosene. One to ten 

 upon cherry did no harm. One to five did no injury to apricot foliage. 



PARIS GREEN. 



This arsenical poison was always used in a mixture in water, and was never 

 used upon any edible fruit, etc., except long prior to the use of the fruit. 



Applied to Canker Worm {Anisopteryx vernata, Peek). 



On the 24th of May many trees in a neighboring orchard, that were seriously 

 infested by the canker worm, were sprayed with the above mixture, one ft. of 

 the poison to 80 gallons of water. The mixture was thrown upon the trees by 

 a large force pump which was fastened to a barrel of the liquid mixture which 

 was drawn in a wagon. Two days later hardly a live insect could be found 

 upon the trees. The mixture was too strong, as the foliage was considerably 

 blighted. Care should be exercised in applying this poison. The strength 

 should never be greater than one ft. to 100 gallons of water, and even then 

 must not be applied too profusely. 



