334 



BULLETIN 226. 



Apple bucculatrix (Bucculatrix pomifoliella) 



TABLE 36 Concluded. 



Injury. 



Collar rot considerable 



slight 



Aphis (Aphis pomi} serious 



considerable 

 slight 



Scab ( Venturia inaequalis) serious 



considerable 

 slight 



Apple-weevil (Anthonomus quadrigibbus) serious 



considerable 

 slight 



serious 



considerable 

 slight 



Canker on leaves (Sphaeropsis malorum) serious 



considerable 

 slight 



Leaf-blister mites serious 



considerable 

 slight 



Leaf spot (Phyllosticta sp.) serious 



considerable 

 slight 



Leaf sewer (Phoxopteris nebeculana) serious 



considerable 

 slight. 



Canker-worm (Paleacrita vernata) serious 



considerable 

 slight 



Tent caterpillar (Clisiocampa americana) serious 



considerable 

 slight 



Woolly aphis (Schizoneura lanigera} serious 



considerable 

 slight 



Fall web worm (Hyphantria cunea} serious 



considerable 

 slight 



San Jose scale (Aspidiotus penriciosus} serious 



considerable 

 , slight 



No. orchards. No. acres. 



31 212 



nearly all old orchards 



55 458 

 44 324^ 



all orchards 

 66 424 l /2 



68 440 



all bearing orchards 

 13 87^ 



13 79 l /2 



28 182 



7 73 



9 156^2 

 all old orchards 



4 94 



3 67 

 i 4 



4 25/2 

 6 34 



56 372^4 



5 44 



9 383/2 



nearly all orchards 



4 

 7 



33 

 3 

 3 

 3 



I 

 2 



36 



2 



4 



43 

 104 

 719 



21 



10 



146^-2 



6 

 22 



nearly all orchards 

 o o 



2 3 l /2 



27 479^ 



o 



1 4 



I 2 



This table includes all the enemies that were found to be serious in any orchard, 

 except borers and the wood-rot fungi. Many other insects and fungi were seen but 

 were not doing any considerable harm. 



Common notions regarding orchard enemies. It is interesting to note 

 the enemies that have impressed themselves on the minds of the orchard- 

 ists. In answer to the question as to what insects or diseases had damaged 

 the orchard in the past, the canker-worm was mentioned for 173 orchards, 

 scab for 120, tent-caterpillars for 112; codlin-moth came fourth. No 

 other enemy was mentioned more than five times. Among those men- 

 tioned were canker, borers, San Jose scale, pink rot, case-bearers, collar 

 rot, leaf-roller, oyster-shell bark louse, aphids, handmaid moth, curculio, 

 palmer-worm. Losses due to mice, sun scald and russeting of the fruit 

 were also mentioned. 



