CHAP. XVIII.] PESTS OF STORED PRODUCTS. 



163 



of Sitotroga cerealella, a small motli whose larva feeds inside 

 grains oi cereals. The prei autions rei ommended under the heading 

 of rice weevil arc applicable to this pest also thorough drying 

 and exposure of the grain in the sun and subsequent storage in dry, 

 tight receptacles being generally effective in controlling tin- 

 damage. 



^ 



-r'f^-i 



1 kuehniella. (After Chittenden.) 



Several Pyralid moths of the genus Ephestia feed commonly in 

 flour, grain and dried vegetable matter, the caterpillars livii 

 silken gallery which is run throughout the food so that loose sub- 

 5, such as Hour, are often found to be webbed together in a 

 continuous matted mass. Fumigation is the only remedy as .1 

 rule. 



Potatoes kept for seed are generally found to be attacked by the 

 Potato Moth (Phtlwrimaea opercukUa), the larva of which burrows in 

 the tubers and not only spoils them by its tunnels but causi 

 to rot. This moth is found in practically all potato-growing 

 districts up to about 6,000 feet ; it does not appear to be known as 

 yet in Ootacamund (though found at Downham Farm a thousand 

 feet lower down) but will doubtless obtain a footing there in the 

 near future. In other countries it is known to attack growing 

 plants of both potato and tobacco, the larva mining in the leaves. 

 but in India it is only knowi t oi stored potatoes. 



If these are picked ovi II unsound ones being 



I, and the rest stored under layers of dry sand, so as to be 



U-A 



