Show ABOUT INSECTS farmer should learn leam history of i different pests necessary to know its of habit enemies and remedies in mak ing successful FIght crago Cras hopper most injurious by dy 4 P MET CLr in order that the farmer cess fully combat the different may buc which injure his crops it la Is necessary insects to know something regarding insects insect in s general their life histories habits enemies and the remedies that may bo be used against them successfully briefly insects may be divided into two classes one develops from th thi life history of grasshoppers perA A egg ego 8 nymph C adult egg to the adult without any resting stage insects belonging belon gir g to this class are said to have an incomplete change of form the other class has a resting stage la in its life history and insects belonging 1 to this class are said to have a IL complete t hange of form in incomplete change of form there are three th ea stages in the life cycle of the insects in acts first t the he egg vhf which c Is laid by the adult and from shirli an active usually rapid growing nymph Is hatched this nymph Is wingless and from it without any intermediate resting stage the winged adults de do celop ir grasshoppers may too bo Cs an illustration of insects of this dass the wingless young are famil lar far objects to everyone it Is thia stage of insects with incomplete change of form that are known as nymphs 11 insects belonging belo neng to the second claca havo have four stages in their eggs laid by the adults develop lato into larvae or worms as they are common ly known Horn worms may be taken as an example of this stage in the development of insects bt t this class the I 1 N successful type of horse drawn per dozer larvae Is tho the active growing period and la is followed by a resting period alch Is 1 known technically as tho the pupa or chrysalis from thia this pupa after a length of time tho the adult emerges it la Is necessary for the farmer to know the details the alfo history of the insect he Is trying to conquer in order that be he may fight it intelligently many insects are practically ily ancon troll tro Hable able except for a very brief period or a short stage in their life history take for instance the grasshopper of all the insect pests which are found in me sect lord of the west this Is the most destructive for there it inbur injures tries the most impo important indue indus agriculture agri culture and block stock raising by he be alfalfa fields they way do the greatest dara dam as asa tn thu though C crop ra P ot of alfa far or djey hatch 1 la laid 1314 U 11 from eggs the r autumn tho the young hoppers do very little apparent injure to tho the cut arst first crop A As a so soon 0 n a it la 18 their however they sl are re d deprived e ed of 0 abundant supply of green food tho rho few bianes remaining are quickly desiro and with them lug bd bi b every open epen d I and newly formed leaf the second crop cannot mako make a start tor for tho new growth groth Is to eaten as fast as it appears tho the injured fields sometimes look as b bare are and brown in midsummer as 48 1 hey are early in tpring in many cases thia this means the loss ot at many thousands thou anda ot at dollars worth of bay hay in ome states very little hm has been done toward preventing this loss but in minnesota and nebraska grasshoppers are fought is systematically y wibb considerable success grasshoppers in alfalfa fields felds may be held in check in ordinary years by plowing late in the fall thu tho waste lands where they breed and by disk harrow ing ini badly infested fields thus destroy ing tho eggs in tho the SOIL soll |