i873-] PEACH CULTURE UNDER GLASS. 365 



Tvater. Peach foliage seems to thrive under the influence of sulphur 

 applied in this way. This insect is easily driven off the smooth surface 

 of the Peach-leaf, and vigorous sy ringings I have always found suffi- 

 cient to master it when it did appear. 



Green-Fly. — Green-fly is very easily destroyed by fumigating with 

 tobacco, and its very first appearance, in however small numbers, 

 should be the signal for exterminating it. I have known it destroy a 

 crop very much when it got a footing when the fruit were setting. 

 The trees should be dry the evening of fumigation, and the tobacco 

 should never be allowed to burst into flame. The fumigation should 

 not take place when the trees are in bloom. 



Brown-Scale. — I never had to deal with this insect on Peach-trees 

 but once. The trees were syringed after they dropped their leaves 

 with water at 145°, and though the wood was coated with the insect, 

 I never saw more of it after the syringing. 



Thrips. — This is a troublesome enemy to Peaches when it attacks 

 them. It cannot be said that the Peach is subject to thrips ; but 

 when plants infested with them are placed in Peach-houses — which 

 never should be, but often is, — they spread rapidly on the Peach foli- 

 age. Fumigation with tobacco, on which some Cayenne pepper has 

 been dusted, for a few successive nights, destroys it. Engine the trees 

 freely after the fumigations to wash the insects and the smell away. 

 When the fruit are gathered, thrips can be conquered by syringing two 

 or three times with tobacco-liquor, m.ade by boiling at the rate of 3 oz. 

 of tobacco to a gallon of water. This should be applied late in the 

 evening, and the house kept close for the night, so that the liquor 

 may hang longer about the foliage. 



DISEASES. 



The Peach and Nectarine are singularly free from disease under 

 glass in a good border, unless it be mildew at times on some varieties ; 

 they are rarely attacked with those diseases, such as curl and canker, 

 which are so troublesome on the open walls. Gumming occasionally 

 causes the death of a branch, and is often the result of a bruise or a 

 tie that has been too tight and cut into the branch. When it appears 

 to any extent, the best plan is to remove the affected branch at once. 

 Mildew is the effect of over-dryness, and also of too much wet. When- 

 ever it appears, dust the affected parts with sulphur, and if the border 

 is dry, water it sufficiently to moisten the soil. If the cause is trace- 

 able to bad drainage it should be rectified. D. T. 



