Show pear blight appears in boim of epidemic peir ball t at o 0 I 1 e rs peri pert dinally in tl it e i 1 roi rol 0 t 0 9 of an HD epi lemic lemle tl TI e ater t s n iy ay be 7 10 r I 1 jears years the last se i us outi leak occurring in 14 1 r I 1 bigi t t Is re luech is the v vigor I 1 or t f tl it e tree Is re reli I 1 I 1 ed I 1 r tl it at reds reas it jt t Is tie esbitz t avoid exten sive she p ieng i n ng which stipulates boin yo in gi NN ath ill use of niti 0 en us fert illet b instein f rt st ile 1 ie mar martires tures should sl N b io to led i 1 l I 1 ie I 1 lliott leht Is active e or ortere thre t ening it Is also iv se to reduce tt ti e alth n of I 1 it ds and see seel I 1 ther fri steal to g i 1 1 clover ioner r soi sot e cover egner cr r p m vl I 1 1 tl I coi cot petes for it he e fertility f tl tf e 9 11 tl TI e d au 6 coan onla blos s in I 1 11 I 1 j 1 I t it v vig ig bl beigl 1 11 t fru t I 1 11 I 1 I 1 0 iv blight and find coil collir ir I 1 algi it its in feet ous N virus irus Is fre frequently carried b insects |