ANIMALS INJURIOUS TO FARM AND GARDEN PRODUCE. 7 



After feeding for ten to fourteen days they form a cocoon, and 

 pupate just beneath the surface of the soil or under dead leaves, etc., 

 on the surface. The beetles appear in from fourteen to twenty-one 

 days. 



There are usually only two broods, but in some seasons' there 

 may be three. 



PREVENTIVE AND REMEDIAL MEASURES. 



All rubbish, pieces of stick, etc., should be burnt, for the adult 

 beetles hybernate beneath such. 



Spraying with a paraffin emulsion with a maximum quantity of 

 soap will destroy the young larvae. 



Poisonous sprayfluids, such as Paris green and arsenate of lead, 

 should not be used until the asparagus has been cut. 



Good results have been obtained by repeated dusting with finely 

 powdered lime during the larval stage. 



Careful examination should always be made of new roots, as the 

 pupae or beetles may be carried in these. 



A NEW PEST OF MANGELS AND BEET. 



Clonus scrophulariae, Linn. 



In May last Mr. W. B. Grove submitted to me for identification a 

 number of larvae feeding upon the underside of the leaves of the 

 Knotted Figwort (Scrophularia nodosa, Linn.). Shortly afterwards 

 the same larvae were received on Mangel and Beet leaves, to which 

 they were doing considerable damage. I cannot find that this insect 

 has previously been recorded as attacking any cultivated plants. 



ECONOMIC IMPORTANCE. 



Hitherto the insect here treated of has not been regarded as one 

 of any economic importance, but the fact that it feeds upon 

 the Knotted Figwort, and thus to a certain extent tends to keep down 

 that weed, is of economic importance. Having now been found 

 injuring two plants, such as the mangel and the beet, it at 

 once assumes a position of great economic importance in view of the 

 large acreage of these plants and their value as food materials. 

 Whether or not this insect will forsake its original food plant for 



