INSECT PESTS 91 



so that no outward application can reach it. The 

 blister-like blotches which result may be pinched off 

 and burnt or thrown to the pigs. But the only real 

 remedy that I know is to sprinkle or dust with very 

 fine dry soot and lime, two of the former to one of 

 lime, once a week at least, early in the morning, when 

 the dew is on the leaf. This, which is to be applied 

 when the plants are first pricked out, will make them 

 obnoxious to the insect, for I am much inclined to think 

 that it is enticed somewhat by the odour of the plant, as 

 happens in the case of parsnips and parsley, which 

 are not unlike in this respect. Even when the celery 

 is finally planted out, the same dusting once a week 

 till the middle of July will be beneficial if done lightly. 



The slug is another enemy, especially to the young 

 plants, so that in raising or planting out always avoid 

 proximity to a spot which harbours them, such as box- 

 edging or hedges of any kind. 



