-133- 
Netiraska 
Utah 
Maine 
With a?.l these enemies at work it "begins to look as though 
the aphid rai.:z;ht "be held in partial check -unless especially 
favor a'ble weather for the aphid shotJ-d occur "between now and the 
start of the canning operations. 
Excerpt from J, E* Dudley^s letter of June 2^)' Yesterday we 
ran the aphidozer thro-agh an acre of alfalfa just before it 
was cut and secured a. very interesting collection of many 
species of insects, **** \7e recovered 9,867 t-yrphid larve^e of 
two principal species, 7^5 coccineilid larvae, and US2 coccinellid 
adults, making a grand total of 11,13^ predators which were 
actually counted. There were hundreds of very small syrphdd 
larvae which escaped us and pro"ba"bly thousands of coccinellid 
larvae which it was not possible to find or count. This gives 
some idea of what the total 'number of predators in all stages must 
be in an acre of heavily infested alfalfa* I expect to have this 
test dupliccited later on peas. T7e have colonized most of these 
predators in a pea field as heavily infested as any of them are 
at present in an effort to ascertain whether control by predators 
is possible when they occur in very large number s« 
M, H, Swenk (May 15-June I5): Ornamentals of various sorts have 
bhofm a widespread and heavy infestations especially by 
Macros inhum pisi on sweet peas. 
I* M, Hawley (June 23) : The pea aphid is not numerous so far 
this year. Tliere are a few on some vines but it is doubtful if 
there will be any loss from, it as peasrare no^fr forming pods» 
BLACK-LIIIED CUTwCro/I ( Agrotis fennica^- Tausch, ) 
E« M, Patch (May 27): Nearly full -fed larvae were sent in from 
Maplewood Farm at Wells with the s bateraent that they are 
destroying peas. These are the first specimens of this species 
that I have seen in many years. 
Massachusetts 
Ohio 
Indiana 
STRIPED CUCUimm BEETLE (Diabrotica vitt ata Fab,) 
A, I» Bourne (June 2U) : First appearance in the eastern part of 
the State the 15th - 17th of June, Same date noted here at 
A^erst and vicinity When large numbers of them literally covered 
the young developing squash and cucumber plants. The severity 
of attack was more marked than had been noted for several years, 
T, H* Parks (June 23): Very injurious to cucumbers and water- 
melons ill the Scioto "Valley. The calcium-£j:' senate and g^^sam 
dust mixoure is being used successfully iu cor troll Jng themo 
J, J, Davis (June -21 ^: Eeports again indicate best control with 
calcium arsenate and gypsum mixture. They are not as abundant 
this year as usual. 
UBRARY 
STATE PLANT 
