52 INSECTICIDES, FUNGICIDES, AND WEED KILLERS. 



TABLE X. — Slioicing Pro'portions of Sulphur and Lime used iti Mixtures agai7ist 

 Anthracnose at Different Stages of Treatment. 



The first treatment is applied when the siioots are 8-10 centimetres 

 (3-2-4 inches), the succeeding treatments every fifteen days. Briosi 

 tells us that this sulphur and lime treatment is in actual use to fight 

 anthracnose in the provinces of Pavia, Cuneo, and Messina. Solutions 

 of sulphate of iron are reserved for winter treatment. 



Cercos]}ora Apii, Fr. (celery leaf blight). — Sturgis, Duggar, and 

 Baily agree as to the efficacy of sulphur in fighting this disease when 

 applied on a hot day, in which case sulphur is superior to all other 

 chemical agents. Scribner dissents, and asserts that sulphur has little 

 or no action. It is evident that sulphur cannot reach the fungus 

 •developed in the interior of the leaf, but in destroying the organs of 

 fructification it may stop the propagation of the disease. 



Cladospormmfulvimi, Cooke (tomato leaf rust). — Mohr and Nijpels 

 found that sulphur acts more effectively than copper salts to arrest 

 this disease. 



Cleniatite {large flowered), variety of Clematis patens, lanuginosa et 

 florida, disease of. — This disease, to which many fine ornamental plants 

 succumb, is attributed to the Accidium clertiatidis or Accidium engleria- 

 num, sometimes to Nematodes. The clematites disease cannot be 

 circumvented by copper salts. But Fourrat found it possible to pre- 

 vent it by laying bare the root, which he dusted with sulphur and 

 afterwards covered with soil. The author's (Bourcart) experiments 

 did not confirm this result. 



Use of Sulphur against Insects. — Crioceris Asparagi, L. — Miss ' 

 Ormerod killed these insects by a spray consisting of 1 lb. of soap, 

 1 lb. of sublimed sulphur, and 1 lb. of soot, in 10 gallons of water. 



Haltica nemorum, L. (earth flea). — These minute Coleoptera gnaw 

 the leaves of young plants, and, owing to their numbers, cause great 

 damage. Their destructive work may be stopped by dusting the 

 plants, whilst still small, with a mixture consisting of 3 kilogrammes 

 (6-6 lb.) of sublimed sulphur, 5 kilogrammes (11 lb.) of soot, and 50 

 litres (If bushels) of quicklime per hectare (2^ acres). In the author's 

 opinion the quicklime would have a preponderant action. 



Haltica ampelophaga, Guer. (altise of the vine). — D'Aurelles de 

 Paladines proposes to fight them with sublimed sulphur, or better, pre- 

 cipitated sulphur from gasworks. A more energetic method consists 

 in using a mixture of black snuff, 12-15 kilogrammes, and Apt sulphur, 

 85-88 kilogrammes per hectare (10-4-13-2 lb. and 74-8-77-4 lb. per 

 acre). A mixture of Apt sulphur and newly slaked lime may also be 

 used. 



Ephippigera Bitterensis [Ephippiger of Beziers), Ephippigera 

 Vitmm (vine ephippiger). — These grasshoppers devour the leaves, the 



' Not M. (= Monsieur as in original). 



