Tho fiillowing advice :s to tlie best methods of destroyiug injurious insecta was givcn by Mr. F. G. Sanboun ia a lecturo buforc the MftafeaohuBeUs State Board of Agricultura : [f caterpillara aro attackiog trei'S, romovc aud burn the rgir, or thoroiiglily soap tho treur to prveut their benig luid, kill theni f ulready laiil, or hang bott!c3 of iweetened water about tlio trees to entrup and dostroy the perfuct woth. If borors are in the t'runk orbranchos, soap the burle. Soft soap mado cold is, perhaps, the bet proparaiion, and f tningled with a strong decoetion of tobacco it will not bo less effoctive. Dig out tho boreis wittí knife or gouge, or pour boiling water, or petroluum, iato their holes, uiaking suro that it reacb.es tho insect. íf inscets aro on the leavos or fruit, eyringe the trees with auy of the preparations previously recommended, soapBuds, tobacco-water, etc. Jar thom frequently, givïng the pigs and poultry a chance to piek up and duvour those which fall. &iïL gpilnpn ÈW$ Hang pieces of cloth or paper dipped in kerosene, in the branches, renewing tbem every few days. For insects upon roots and bulbs, eprinkle petroleum along the rows, or water thom with stroog soap-suds; for onions, raingle common soot, or pyroligneous acida with the solution. For squash and cueumber vines, etc , scatter paper rags, saw-dust or other abeorbcnt materials. soaked in kerosene, nbout tho hills, sprinkle the loaves with road-dust, air-slacked lime, ashos, or powdered borbs known to be offensive to tho insects. The Pcrsiao inseotpowder, whieh has proved quite useful of late years, is ooraposed of the pulverized leaves and blossoina of fover fow, the Pythethrum carneum, closcly alliod to the corumon camomile. It would bc really wortby of experiment to collect, dry and powder tho flowers oí our cominoQ ox-eye daisy, or white weed, so common through the country, and ascertain the effect upon iusects and slugs which attaek our broad-leaved plánts, as well as upon tho motos whioh infest fure and woolen cloths. Chloride of lima, freely scattered upon the ground among growing vegetables, gives ofl a gas which is Ktremely noxious to most inseots, without injuring the plauts. Coal tar is aleo quite servicoable in some cases. For field crops, tho most feasible plan is, by rotation, to starve out the destructive millions that prey upon one variety, devoting the land to some other erop for two seasons before returning to the original one. Srnall fields of wheat, rye or oats may sometnnes be eaved from immcdiate iojury by building a line oí fires on tbe windward eide, and burning scraps of leather, wet straw, and Buch 8ubstance3 as emit a thïck, oflensive smoke. Two persons, on opposite sides, with a cord reaehing across the field, have swept ofl and destroyed somo inseots by drawing tho tightened cord across the heads of the grain.