Mustard Beetles. 
283 
Also that 
■' mustard is considered a very excellent preparation for wheat, as it has a 
tendency to destroy or prevent the ravages of wireworms." — S. E. 
With this, similar information to the above is given of land 
infested with wireworms having been put under mustard, and 
wireworms since being rarely met with, and wheat quite un- 
injured. Other notes are given, mentioning the sowing of 
white mustard as a regular practice to clear infested fields. 
Likewise of wireworms not being seen or heard of as attacking 
crops of wheat or other cereals after mustard ; and that it 
seldom attacks any crop after mustard ; also of wireworms not 
having been observed in mustard-fields. 
That mustard is not always exempt is shown by the following 
•observations. 
" I think it is a common thing to find mustard attacked by -wireworms, but 
only on land which is subject to the pest. I have a marsh of mustard 
destroyed by \vireworms, and when ploughed and sowed with mustard it met 
the same fate." — E. S. 
A very precise detailed account is also given of severe injury 
to a potato-crop caused by wireworms, and the subsequent 
destruction by them of 95 per cent, of the seed of mustard put 
into the ground with a view to clear the pest. In this case 
the wireworms attacked the germ as soon as it showed signs of 
vitality. 
The above notes convey the main points of the information 
placed in my hands in reply to the circulars of the Royal 
Agricultural Society, but in such a condensed form that, in 
-.offering my thanks to those who have entrusted me with their 
observations, I desire to add that their communications will be 
given, almost in their own words, in my own 'Annual Report on 
Injurious Insects,' in which the requisite space can be afforded. 
Meanwhile I have, in the case of the longest quotations, 
appended to each the initials of the contributors, of whom a list 
-of the names is also added. 
LIST OF CONTKIBUTOES. 
Abbott, "W., Serpentine House, Holbeach. 
Bannester, a.. Barling, Rochford, Essex. 
Brand, T. P., Foxearth, Long Melford, Suffolk, 
Caswell, C, Peterborough. 
Catlixg, Capt. E. C, Needham Hall, near Wisbech. 
Egar, S., Wryde House, Thomey, Peterborough. 
Fuller, A., liamsey, Hunts. 
Green, W. W., Manea, Cambs. 
Harrington, A., Pvochford, Essex. 
Babvey, G. C, Foulness, Great Wackering, Essex. 
