APRICOT AND CHERRY DISEASES. 91 



the cherry, npple, etc., in August or September. The 

 larA'ie hatch out in late September or early October, and 

 then envelop themselves in a case attached to the shoots. 

 They feed during the autumn, remain quiet during the 

 winter, and in spring become active, then feeding on the 

 young leaves and buds. The larvae are reddish-brown or 

 orange in colour. They pupate in the case, which is 

 pistol-tjhaped. 



PiEMEDY. —Spray the trees in late summer or autumn 

 with Formula No. 10. 



Miscellanecus Apricot Pests. — The larv^^ of the 

 Winter, Mottled Umber, Bud, and Magpie Moths; also 

 the Peach Aphis, Peach Scale, and the Ped Weevil, occa- 

 sionally attack the foliage of apricots. See index for re- 

 ferences to these pests. 



Other Pests — The Fruit Tree Bark Beetle, Mottled 

 Umi)er Moth, Winter Moth, Figure-of -Eight Aloth, Lackev 

 Moth, Gold-tailed Moth, Buff-tip Moth, Plum Tree 

 Borer Moth, and Leaf Weevils, also attack the cheiTy, 

 details of all of which are given elsewhere. See index. 



B DISEASES. 



Apricot Brown Rot (Monilia fructigena).— A fun- 

 goid disease which attacks the fruit of the apple and apri- 

 cot, causing it to rot. In some seasons it is very preva- 

 lent. Full particulars of it appear in the section devoted 

 to diseases of the apple, in Chapter I. 



Cherry Leaf Scorch (Gnomonia erythrostoma). — 

 Although apparently an old disease, it is only recently that 

 its existence has been brought prominently into notice by 

 Mr. E. S. Salmon, F.L.S., mycologist to the Wye Agri- 

 cultural College. In the September (1907) issue of the 

 Board of Agriculture Journal he gave a detailed account 

 of its life history. It appears that the spores of the 

 fungus, when they fall on a young leaf, vegetate and de- 

 velop a mycehum growth within the tissues, spreading 



