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states, however, that it was not noticed until the cold, wet weather of 
October and November set in. It should be added that the writer 
observed the same disease upon Plusia in the field during the last 
week of July, and that pupae also suffered from it. This disease is 
readily communicable from one larva to others, and it frequently 
happens that if a diseased one is placed in an ordinary tin collecting- 
box over night all of the others that may be confined with it develop 
the disease in a day or two. 
Fungus disease. — One of the fungus diseases from which Plusia 
larvae die is Botrytis rileyi Farlow. The affected worms, according to 
Riley, become sluggish and then die, after death appearing stiff and 
brittle and firmly attached to the leaves or stems upon which they 
have died. They are profusely covered with a greenish mold. 
KEMEDIES. 
The same remedies as advised for the cross-striped cabbage worm 
should be used against the present species. It should be observed, 
however, for the benefit of our correspondents, that they must be 
used with great persistency at frequent intervals in order to insure 
perfect success, and should be applied to the lower surface of the outer 
leaves. The killing off of the first generations of the insect should be 
particularly observed, but this will be of little or no avail if other 
cabbage growers within several miles of the same locality do not take 
the same precautions. One of our correspondents, Mr. Dunn, pre- 
viously referred to, tried Paris green and lime, and succeeded in kill- 
ing all of the common cabbage loopers. 
Notwithstanding this, however, the writer noticed during September, 
in the vicinity of the District of Columbia, an entire field of cabbage 
which had been liberally dusted with Paris green and plaster mixed 
at the usual rate of 1 pound of poison to 20 pounds of plaster, with no 
perceptible effect upon these insects. The first application had been 
made about two wee\s previous, another had been made within five 
days, and vet the larvae were feeding quite contentedly on the lower 
surfaces of the leaves in their usual manner and no dead were to be 
found under the plants or elsewhere. This simply indicates that the 
poison, as previously stated, should be applied to the lower surface, 
and preferably in the form of a spray. Mr. Pratt, who observed this 
species at Chesterbrook, Va., noted the same results. After a rainfall 
eggs hatch, and the larvae are able to do injury without being affected 
by the poison. 
A NEW CABBAGE LOOPER, 
(Plusia precationis Gn.) 
The larvae of this species in different stages of growth were observed 
during 1899 and 1900 attacking cabbage and some other plants in two 
gardens in the District of Columbia. The same insect was observed 
