Appendix. 513 



This insecticide may be obtained as a paste called Swift's Arsenate of 

 Lead Paste and in other paste forms. 



USES. 



It destroys all biting-mouthed insects, such as caterpillars and beetles, 

 especially beneficial for Winter Moth, Codling Moth, Lackey Moth, 

 Currant Moth, Gooseberry and Nut Sawflies, SlugAvorm, etc. 



This wash may be mixed with Bordeaux mixture and also paraffin. 



TIME OF APPLICATION. 



The first spraying should take place as soon as the buds show signs 

 of bursting and again as soon as the blossom has fallen. Now and again 

 a third spraying may be necessary to kill Gold Tail and Vapourer Moth 

 caterpillars, etc. It should be used as a fine spray, and the spraying 

 should cease as soon as the leaves are seen to be dripping. 



B. Paris Green. 



FORMULA. 



(1) Powder : 



Paris Green Powder. . . . . . . 1 oz. 



Water 10 galls. 



(2) Blundell's Paste (Copper Oxide, 31 p.c., Arsenic Trioxide, 



59 p.c., Acetic Acid, 10 p.c.) : 

 Blundell's Paste . . . . . . . 1 oz. 



Water 10 galls. 



PREPARATION. 



Mix either the powder or paste with the water and keep in constant 

 movement to prevent the Paris green sinking to the bottom of the water. 

 The writer has always found the addition of lime, at the rate of 4 oz. 

 to the 10 gallons, of benefit in stopping scorching, but Strawson says this 

 is not necessary. 



For delicate-leaved trees, such as peach, nectarine and apricot, J oz. to 

 10 gallons is sufficient. 



USES. 



For destroying all biting-mouthed insects, such as caterpillars and 

 beetles. 



TIME OF APPLICATION. 



The same as for arsenate of lead. It is necessary that this wash is 

 put on as a very fine spray, owing to the scorching effect it has on 

 foliage. It must never be used when the trees are in blossom. 



2 L 



