Reports to various Correspondents. 65 
mention it to you. It is to place from now (May) on to July heaps 
of green stuff (lucerne or clover) about the gardens under any rough 
boards. The beetles may be found there during the day and col- 
lected. This means trouble, but I believe if we collect the green 
stuff, say, every week, burn it and replace new, we shall kill the 
eggs laid by these beetles, for they always seek shelter to deposit 
their eggs in preference, so if the land is clear and cultivated they 
fly there to lay their eggs, and so the wireworm are prevented. 
I have known gardens cleared of wireworm by persistent trapping 
of the larvae by placing “ baits ” near each “ hill.” Of all baits there 
is no doubt beetroot is the best. 
One reason why wireworm are so bad in hops is that much rape 
cake, nibs or dust is used. This attracts the beetles to 'the gardens, 
and only draws the larvse away pro tem. I am sure it does more 
harm by encouraging this pest than good as a manure. 
The use of bisulphide of carbon comes in for wireworm in hops. 
A quarter of an ounce each side of a hill will kill all grubs, but no 
one tries to use it because it is highly inflammable, and except used 
with care may do harm. It has cleared out Phylloxera on vines, and 
would do just as well for hops for such pests as wireworm and Otter 
or Ghost moth grubs ( Hepialus humuli). 
ANIMALS INJURIOUS TO HORTICULTURE. 
Animals injurious to Culinary Plants. 
The Cabbage Moth. 
( Mamestra brassiere , Linn.) 
Some caterpillars sent by a correspondent from St. John’s 
Wood, N.W., to the Museum, were recorded as doing much damage, 
they were those of the so-called Cabbage Moth ( Mamestra brassiere 
of Linnaeus). 
These larvae, are great pests in gardens all over Great Britain and 
Ireland. It has been one of the notable pests this year in parts of 
the South of England and has done much harm. Every year it is 
1 eported as doing damage, but some years more so than others. It is 
F 
