488 Moth itvjurious to Vineyards. 



lamps, it would be the certain means of annihilating this injurious 

 insect. These two modes are far superior to the tedious and 

 imperfect operation of destroying the caterpillars. It would not 

 be prudent, however, to neglect the latter operation, which must 

 only be considered as the resource of the improvident vine cul- 

 tivator, who, in the preceding year, has neglected to remove the 

 eggs from his vine leaves. 



M. Audouin believes that he has found out a method of de- 

 struction superior to those just described, but he is desirous of 

 making more experiments before laying it before the public. 



From the above paper, the practical gardener may derive two 

 very valuable hints. In the first place, he will see the powerful 

 results that attend the seemingly minute and unimportant practice 

 of hand-picking; a practice so often recommended by Kirby and 

 Spence, and by Mr. Westwood, and yet, we fear, too generally 

 neglected by cultivators. Much might be done in gardens by 

 the employment of women for picking off the eggs of insects ; 

 one woman would be sufficient for an ordinary-sized kitchen- 

 garden, from March to November ; and a little experience with 

 the net would soon enable her to catch and destroy many insects 

 in the perfect state. The late Mr. Willmot of Lewisham em- 

 ployed one woman for upwards of 100 acres of nursery ground, 

 solely for the purpose of keeping his trees clear of the woolly 

 aphis; and he succeeded. The Rev. Thomas Williams of Hen- 

 don Rectory (whose garden, though less than an acre in extent, 

 is yet, in point of culture and high keeping, equal to that of 

 Mrs. Lawrence at Drayton Green, and, in the gardenesque dis- 

 position of a collection of the most rare and valuable trees and 

 shrubs, superior to every other garden that we have seen) keeps 

 one man during summer for the sole purpose of detecting and 

 removing insects on his collection of pines and firs. 



The second bint which gardeners may take from M. Audouin's 

 paper, is that of employing, during the whole summer, moth-traps 

 of the kind used by him. Cocoa-nut oil, as being the cheapest, 

 may be used for the lamps; and any cheap sweet oil for coating 

 over the outside of the bell-glasses ; which glasses may be the 

 same as those used for striking cuttings, the larger green kind 

 used for covering cauliflowers, or even common hand-glasses. 

 Perhaps coating the glass with gum and water might, in England, 

 be cheaper than coating it with oil. The traps should not be 

 set till it is nearly dark, and no more oil need be put in the 

 lamp than what will keep it burning till daylight returns. 



Traps of this kind can, of course, only be effectual with winged 

 insects which fly about dui'ing the nighttime, such as moths, 

 cockchafers, &c. ; but, perhaps, some kind of trap might be de- 

 vised for creeping insects, such as the wood-louse, the ant, the 

 eai'wig, &c.. as effective as M. Audouin's moth-trap. There is a 



