292 



STATE HORTICULTURAL SOCIETY. 



THE CODLIN MOTH OR APPLE WORM {Carpocapsa pomonella Linn). 



This caterpillar still remains a common 

 and destructive pest to the apple, though 

 one of the easiest to control by spraying 

 the orchards. As long as spraying is 

 neglected, not much fruit that is mar- 

 ketable or fit to keep can be expected. 

 The accompanying cut explains all the 

 different stages and work of the moth. 

 There are two broods each year, but if 

 the trees are given a good spraying with 

 one of the arsenites within ten days after 

 the blossoms fall from the trees, if there is 

 no rain for a few days severe enough to 

 wash the poison off, it will generally suffice 

 for the season. If the first brood is nearly 

 all killed the second brood will do little 

 harm. If very heavy rains follow almost 

 immediately after the first spraying, a 



[Fig. 15. Codlin-moth; c, larva; d, papa; i, 

 cocoon; g and/, moths. 



second application, a little later, may be necessary. 



THE WHITE TUFTED CATERPILLAR (Orffia leucostigma) and THE RED HUMPED CATER- 

 PILLAR (QSdimasia concinna). 



These are so named from the appearance 

 of the respective caterpillars. They are 

 very frequently met with on the apple 

 in numbers that strip the leaves from 

 parts of the orchards and sometimes 

 injure the foliage in whole districts. A 

 J good spray of Paris green is the best 

 Fig. le.-Red Hamped Caterpillar. remedy for them, as well as for a large 



number of less injurious leaf-eating caterpillars. 



APPLE TREE APHIS (Aphis tnali, Fabr.). 



In the spring and early summer these little, green, wingless lice are 

 often found in great numbers over the buds and leaves. Through their 

 minute beaks they take much of the sap that is needed for the life and 

 growth of the tree. They multiply very fast and should be destroyed, if 

 they are numerous, early in the season. 



After the leaves have developed, the 



lice will do little harm unless very 



plentiful. In the fall the winged lice 



lay their little, black eggs around the 



buds on the apple twigs. These eggs 



hatch into the small, 



green lice when spring 



opens. 



Remedy. — Kerosene 

 emulsion as early as 

 the lice are seen in the 

 spring. 



Fig. 17.— Apple Tree Aphis, winged and'wingless forms. 



