SPRING NUMBER 55 
curl up and die. Other instances where this louse has been seen 
in disastrous numbers were on Easter lilies, oranges, etc. Neal 
(26) speaks of Myzus persicae as very injurious to peach growing 
in Florida by causing the tender sprouts to curl up and die. In 
the green house, particularly, they reproduce very rapidly and are 
a serious pest. 
The list of aphids as reported in the preceding paper in the 
Entomologist shows this louse to have been collected from thirty- 
five different plants in Florida. Additional plants as recorded 
elsewhere by Taylor (34), O’Kane (28), Chittenden (4), Gillette 
and Taylor (18) bring the list of hosts up to more than one hun- 
dred species. These hosts include practically all garden crops, 
many flowers, ornamentals, fruit trees, weeds, etc., and in widely 
separated families. The aphid apparently has no preference for 
the juices of any one plant or even single family of plants, but 
selects almost any which are fresh and tender. Neither is it con- 
fined to this part of the country. Other states from which Myzus 
persicae is reported are California (15), Virginia (4), Colorado 
(18), Minnesota (27). From these widely separated States we 
can conclude that the species is well scattered over this country. 
It is also reported by Buckton (3) from England. 
Seasonal Occurrence. Beginning in the fall Myzus persicae 
was first found in October on cabbages and turnips. It continued 
to breed there during November and December and increased 
quite rapidly. In January and February it was less numerous, 
but a few could always be found in any field of cabbages, turnips, 
rape, and other related plants. It began to appear then on other 
plants, being found in March on lettuce, pansies, violets, and 
Easter Lilies. In April it appeared on some rose bushes, and on 
hybiscus and poinsettias, and also on beets and radishes in the 
garden. A month later, however, they had apparently all left 
those plants where they were so numerous and it was also diffi- 
cult to find them on cabbages, but instead they were now numer- 
ous on Irish potatoes, corn and beans which were coming up. Here 
they lived while these plants were fresh, then abandoned them 
as they previously had the others. In June they were found on 
kale, egg-plant, and peppers, which were then growing, and on 
which they lived during the early part of the summer. Later, 
they seemed to entirely disappear, and although many plants were 
examined during the late summer no trace of them was found. 
Probably the adults live in small numbers on some wild plants 
where they were unnoticed. They were not on the garden and 
