Insects Ivjiirioiis lo tlic CJieni/. 



191 



The pn[ial stane is found to last Irnm tweiil y-oue to twenty- 

 five (lavs. 



riie seiMjml bront.l, •\vliicli mainly occui's in Si'iitenilier, lay tlieir 

 egus ill a similar manner, and the ]ar\'a' remain feeding nnder the 

 bark all the winter. They eomnienci' to pujjate ahont the odtli of 

 April, and finish by the second week in iMay. 



]]ut in 190G there were still larva.' on the ll!th of ^lay. dust 

 previi:iu^ to hatching the puiKO force their way oiU: of the harlv and 

 the moths escape. 



L'REVKXTlnX ANH TkIvVT.M i;XT. 



Prevention may pussifdy be carried ijut hy smearing trees in 

 infested orchards, at the time the moths are aliout, with some noxious 

 mixture. Cow-dung or clav and lime would nrake a good mixture ; 



a L;nod smearing' of grease, if a pure sample is olitained, might hr 



similarly used. 



~Sh-. Levy's plan of thickly coating the stems with pitch has been 



found to do no harm to the trees, and has certainh' reiluced the 



numbers of the insect. A -ood brushing or painting with arsenate 



of lead and clav might kill the caterpillars eating m or out nf the 



trunk if put on thickl>'.* If only a few trees are attacked the larva- 



niav b,. killed by cutting into the tunnels with a knife or probing 



with a .stitt' Avire. 



Eefeekxces. 



(ll Tliroh.ilJ. F. V. .Ti-iurii;il Bdard of Agriculture, p. IB-"" llS97l. 



(O) St,.,iiituii, H. T. -A ^f^oiuat of llritisli I'.utterlties uud Moths,' vol. It.. 



.,. '241 |1S,-,0|. 

 (?)1 K.ilhii', ]'. ■ Insects Iiciuri.ius to Foresters, Fruit Growers ;ina Ganleuers,' 



ilaig. Trar.s.). p. -im (lS4(li. 

 * This has been tried h.v Mr. Honeybull of Teyuliaiu, but fouud to do no 

 good. 



