CARROT FLY. 41 



"If Carrots require thinning, this should be done when an 

 inch or two high ; if thinned after they are from two to six 

 inches high, the fly seems to attack them more readily." — 

 (D. M.) 



On ground near Kirkwall, in the Orkneys, where the soil 

 was of a strong clayey nature, unsuitable for Carrots, it was 

 found, after all previous experiments had failed to produce a 

 good crop, that (instead of using ordinary manure) digging in 

 about the same quantity of peat and sand, and giving a good 

 watering with gas-water before sowing was quite successful. — 

 (T. M'D.) 



In a locality where the Carrot-crop suffered severely from 

 the fly on the ordinary soil, a piece of peaty ground was 

 taken for Carrot-growing which produced good crops yearly. 

 -(J. D.) 



In the following notices the soil appears to have suited the 

 Carrots perfectly, and the attack of fly to have followed on 

 thinning : — 



At Lockerbie, N.B., where change of soil was tried as a 

 remedy for fly, a portion of ground was cleared out to the 

 depth of twenty -two inches, and the vacancy filled in with a 

 compost of four parts good brown peat, four parts light fine 

 yellow loam from Vinery border, two parts well-decayed leaf- 

 mould, and two parts river-sand ; the whole being thoroughly 

 mixed, and no manure being used. The Carrots sown on this 

 were thinned at the end of May, and did well till the 17th of 

 June, when the fly was found to have begun its ravages. — 

 (F. G. F.) 



On a stiff clayey loam near Isleworth the same experiment 

 was tried on a smaller scale, by removing soil to the depth of 

 about eighteen inches and filling in the space with a mixture 

 of about one-third decayed leaf-mould of Elm-leaves, one- 

 third of the loam that had been dug out, and one-third of 

 mixed coal-ashes, broken peat, and a little white sand. The 

 Carrots did well on this till the end of June, when they were 

 thinned, and the grub shortly after appeared amongst those 

 most disturbed by the thinning. Copious watering with an 

 occasional application of dilute Soluble Phenyle stopped the 

 attack, and threw the Carrots into vigorous growth. — (Ed.) 



The. following notes have reference to methods of cultivation 

 of the ordinary garden ground, to the addition of salt and other 

 occasional applications : — 



At Skibo, N. B., the course was adopted of having the ground 

 double-dug before hard frost set in, the manure being put at 

 the bottom of the trench. When complete, a good dressing 

 of salt was given, which washes down before spring, and 

 previous to sowing a good dressing of soot and wood-ashes was 



