102 



Insect Pests. 



years not until the middle of the month, and these ]:iroduce the 

 lar\-;e wliich make the mines seen in September and October. 



In the autumn of 1906 the second brood of larvie had matured 

 mostly by the second ^veek in (Jctober. but a few were found in the 

 leaves as late as the Ith of Xovember. 



They -^vinter in the pupal stage in crevices on the trees, around 

 tlie buds. etc.. and in any convenient shelter. 



It was said bv Stainton (1) to be common on the wild apples in 

 the hedgerows. In this way invasion can always come to an orchard. 

 Fortttnately, wild apples are scarce. It has also been observed on 



?■— APPIK LIAF ^liyzi: {Xrj'ti,-ii/n uiolella). 

 A. larva ; l;, rT.c un : I ■, miiu-d leaf. 



the medlar and r^uince, but so far not on hawthorn. A number of 

 the larvfc were found dead in the mines in the autumn. The cause 

 of this could not be traced. 



Ti;eat_mext. 



As far as can lie seen at ineseut the treatment for tliese Apple 

 Leaf ^iliners is somewhat difficult, but it is possible that a uxiod 

 dressing of lime M-asli would so coat the little cocoons that the e^Iv 

 brood of motlis could nr.t escape from the cocoons. 



In nurseries it is advisable tn hand-pick any mined leaves in 

 duly, fiefore the escape of the larva.-. 



