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setting, and it forms a covering three or four inches in diameter 

 on the ground and closely around the stem, through which the 

 maggot when it hatches from the egg is unable to make its wav to 

 the plant tissue below the surface. It is worthy of trial in this 

 State, and it acts like the carbolized lime. Professor Washburn 

 states that the mass is very resistant to weather, and remains intact 

 as long as there is any danger of maggot attack. It need, there- 

 fore, be applied once only,, and was- originated as a substitute for 

 the tarred ])aper discs. Its advantages are convenience of appli- 

 cation, that it fits itself perfectly to the surface of the soil in which 

 the plant grows and around the plant itself, leaving no wav for the 

 raaggct to get to the roots. 



DESTRUCTIVE METHODS. 



If for any renson the maggots are not prevented from getting a 

 foothold in the idants, measures should be taken to destroy them 

 as soon as their presence is noted, and for this purpose one" of the 

 following substances may be used : 



Carbon Disulphide. 



As a killing agent, this substance seems to be very effective, but 

 its use is practically limited to the maggot on cabbage and cauli- 

 flower, and then only to cases where but a few plants are to l:.e 

 treated. ^ It is applied by making a small hole in the ground, by 

 means of a stick or otherwise, two or three inches from the plant 

 and extending obliquely down as far as the roots, and pourino- or 

 injecting into it a spoonful of the liquid. The hole is then closed 

 by pressing the earth over it, and the fumes permeate throudi the 

 soil, come into contact with the maggots and kill them. " Care 

 should be taken that the liquid is not poured directlv on the roots, 

 which would result in injury to the plants. At onetime this sub- 

 stance was much recommended, and a special tool for usino- it, 

 known as the ''McGowen injector," was placed on the marketrbut 

 for a variety of reasons the bisulphide failed to gain general ap- 

 proval, and the injector is no longer obtainable. 



