▁modern ▁cho pper ▁har v ester ▁can ▁complete ▁the ▁har vest ▁faster ▁and ▁more ▁efficiently ▁than ▁hand ▁cutting ▁and ▁loading . ▁Aust o ft ▁also ▁developed ▁a ▁series ▁of ▁hyd ra ul ic ▁high - l ift ▁in field ▁trans por ters ▁to ▁work ▁alongside ▁their ▁har vest ers ▁to ▁allow ▁even ▁more ▁rapid ▁transfer ▁of ▁can e ▁to , ▁for ▁example , ▁the ▁nearest ▁railway ▁s iding . ▁This ▁mechanical ▁har vest ing ▁does ▁not ▁require ▁the ▁field ▁to ▁be ▁set ▁on ▁fire ; ▁the ▁resid ue ▁left ▁in ▁the ▁field ▁by ▁the ▁machine ▁consists ▁of ▁sugar ▁can e ▁to ps ▁and ▁dead ▁leaves , ▁which ▁serve ▁as ▁mul ch ▁for ▁the ▁next ▁plant ing . ▁ ▁P ests ▁ ▁The ▁can e ▁be et le ▁( also ▁known ▁as ▁can e ▁gr ub ) ▁can ▁substantial ly ▁reduce ▁c rop ▁yield ▁by ▁e ating ▁roots ; ▁it ▁can ▁be ▁controlled ▁with ▁im id ac lo pr id ▁( Conf idor ) ▁or ▁ch lor py rif os ▁( L ors ban ). ▁Other ▁important ▁p ests ▁are ▁the ▁lar va e ▁of ▁some ▁but ter fly / m oth ▁species , ▁including ▁the ▁turn ip ▁moth , ▁the ▁sugar c ane ▁b orer ▁( D iat ra ea ▁sac char alis ), ▁the ▁African ▁sugar c ane ▁b orer ▁( E ld ana ▁sac char ina ), ▁the ▁Mexican ▁rice ▁b orer ▁( E ore uma ▁lo ft ini ), ▁the ▁African ▁army w orm ▁( Sp od optera ▁ex empt