96 



THE IJEPOHT OF THE 



X( 



Id 



Bud Moth (Eucosma ocdlana). This species was somewhat more abiuidant 

 than usual, especially in ?<oi'L'olk County. 



Vf.wi Leaf Blister ]Mite [Erioplnjcs pijvl). This well-known pest has Toi- 

 several years been held in check hy unknown natural factors, but during the past 

 two years it has increased to a very marked extent in many orchards wliicli have 

 not been receiving the so-called dormant application of lime-sulphur. The present 

 indications are that the blister mite will again have to be reckoned M-ith as a 

 first-class orchard pest. 



The Mullein Leaf Bug {Cainpijlonia verhasci). A small mirid,* which 

 occurs throughout the Province on mullein, catnip, potatoes and several other 

 plants, was found attacking apples this year in two orchards in Norfolk County. 

 Baldwin. Eoxbury IJusset and Spy were freely attacked and on a few of the in- 

 fested trees 75 per cent or more of the apples were more or less injured by the 

 bugs feeding on them. It Avas not uncommon to see one to seven ol" the liille 

 green nymi)hs on a single apple. 



Fig. 2. — Mullein Leaf Bug injury on mature apples. 



Conspicuous brown or sometimes blackish corky warts formed at the spots 

 where the punctures were made. In most cases there was only one or two such 

 scars to an apple; in others a ring of them almost encircled the ai)])le: and in 

 others several, close together on the one side, caused the fruit to be lopsided. 



All the puncturing was done by the nymphs while the ap])les were still small 

 —not more than one-half to two-thirds of an inch in diameter. (According to our 

 observations, the adults do not attack the fruit but they do feed very freely upon 

 the leaves and wood of tlu' new growth, and are specially fond of the water- 

 sprouts.) 



The nvmphs are light given in t'olor and are very small, being, even in the 

 last instar." only about 2 mm. in length. The adults vary in (•(.h.r fi'oni greenish 

 to brown, and average a])out ;■> mm. in length. The life history of this s]iecies 

 was not worked out, but from the fact that on Juno ]2th most of the iiymphs 

 were in the last instar and a few had transformed into adults it would a])])ear 



*Species determined by E. P. Van Duzee. 



