11 



obtained in twenty gallons of water. The copper sulphate 

 solution and the lime water mixture were then poured to- 

 gether through a strainer into the spray tank and to the re- 

 sulting Bordeaux mixture was added one pound of lead 

 arsenate dissolved in a small quantity of water. The whole 

 mixture was kept thoroughly stirred while being sprayed 

 on the trees. 



In the case noted this operation of spraying was repeated 

 three times during the season and mainly to control the 

 "brown-rot." The first application was made just before 

 the blossoms opened and no poison added to the mixture; 

 the second application, this time with the poison added, 

 was made when the fruit had set, while a third application, 

 again with poison, was made some three w^eeks later. The 

 control obtained indicated considerable value in the meth- 

 od as above outlined. This spraying method of control, 

 however, cannot as yet, be considered as superceding the 

 method of mechanical control of the series of insects now 

 being considered and until further data is at hand jarring 

 for the curculio is the practice to be recommended. 



The two methods of mechanical control of insect pests 

 outlined in the preceding paragraphs, that is the destruc- 

 tion by individuals of borers and the shaking down and 

 destroying in numbers such insects as the curculio, indicate 

 lines of work that may have to be employed in certain spe- 

 cific cases. Necessarily the method of work employed will 

 be governed by a study of the insect itself and its habits of 

 life. 



TRAP CROPS. 



While the methods of work heretofore outlined offer 

 means of control for many insect pests, when these methods 

 have been adapted to the local conditions where the work 

 is to be done, yet there are certain insects that cannot be 

 reached by any of the ways noted. Such of our truck gar- 

 deners as are interested in the production of early toma- 

 toes know the damage done by worms to the "bottom" or 

 earliest crop of this vegetable. When this portion of the 

 crop can be brought off uninjured the largest profit accrues 

 to the grower. 



