96 MUSTARD. 



previous observations, but the ingredients, and proportions, and 

 method of use of the lime and sulphur mixture, joined to a previous 

 note of gas-lime having been considered serviceable, suggest that the 

 well known mixture of the late Mr. Fisher Hobbs, which he found (and 

 which since his time has been found) so serviceable an application for 

 getting rid of Turnip Flea Beetle, might be found of similar use here. 



This consists of quick-lime one bushel, gas-lime, in caustic state, 

 one bushel, soot ten pounds, sulphur six pounds, all mixed well 

 together, pounded very fine, and distributed by hand, or machine, on 

 the infested plants in the morning or evening when the dew is on, or 

 when weather is damp, so that the powder may adhere. 



The above amount is enough to dress an acre of quite young Tur- 

 nips, and as Turnip Flea Beetle, as well as some other kinds of small 

 beetles falling under somewhat the same class of remedies, are amongst 

 Mustard infestation, the application might prove very well worth 

 trying. 



Amongst fluid applications to be distributed by sprayers, a mixture 

 of soft-soap and sulphur has been tried in the past season on Kale 

 grown for seed with little if any injury at all to the plants. See paper 

 headed Cabbage, pp. 20 — 23, of this Eeport. The mixture in this case 

 was used against Aphides, but it may not unlikely be useful, both as a 

 deterrent of attack, and as very bad for the young grubs, as neither 

 soft-soap nor sulphur are suitable for their food.* 



The details regarding comjDosition, application, &c., will be found 

 as referred to above, with address of manufacturers of the compound, 

 and also observations as to possibility of getting it made up with an 

 addition of Paris-green, which would be well worth trying. 



There are objections to the use of Paris-green in powder form, but 

 in the excessively minute amount in which it not only acts sufficiently, 

 but which also must not be exceeded without destruction to the plants, 

 the Paris-green can be safely used in fluid form. This may be in 

 suspension in water, or given in dilute mixture with soft-soap. 



The proportions requisite would have to be tried. On leafage of 

 orchard trees we have found a proportion of not more than about two 

 to four ounces of the arsenite in forty gallons of water was what might 

 be recommended. But where the powder is applied in water, it should 

 always be remembered that it must be kept thoroughly mixed. It does 

 not dissolve, it is held in suspension. Therefore (where it is allowed) 

 it settles to the bottom of the spraying machine, and the fluid at the 



* A mixture of which soft-soap is a main ingredient, and which, so far as I am 

 aware, somewhat resembles the mineral oil emulsions so much used in the United 

 States, is sold by Messrs. Morris & Little, of Doncaster, under the trade name of 

 "Anti-pest." I know it to have been very serviceable against some attacks, and 

 think it might very likely be worth trial. — Ed. 



