_Q_ 
VETCH 
PEA APHID ( Illinois, pisi Kalt. ) 
Kansas. H. R. Bryson (February 23): . Unable to find pea aphid s in 
alfalfa fields to date. 
Oregon. L. P. Rockwood and T. R. Charnberlin (February $): Early fall- 
sown vetch near Farmington averaged less than one at>hid per 100 
sweeps on January 2$. .In 193^ j near the same date and in the same 
section, vetch averaged more than 50 Per 100 sweeps. Tall volunteer 
vetch averaged from 12 to l6 per 100 sweeps, whereas comparable vetch 
in 193^ averaged 200 per 100 sweeps. Very few fields of vetch in 
Washington County were seeded early enough in the fall of 193^ to- 
become infested by viviparous forms, whereas there were many infested 
early fall-sown fields in 1933* 0n alfalfa and Scotch broom we have 
been unable as yet to find any aphids. In other years hatching from 
eggs on these hosts had taken "olace by this time. Several hiberna- 
tion caches of coccinellic 1 beetles, Hippodamia sinuata spuria Lee, 
H. quinq.uesigna.ta obliqu a Csy. , and H. donvergens Guer. have been ob- 
served. These predacious beetles are more abundant in these caches 
than in any year since the winter of 1930-31; they were very scarce 
in the spring of 193*-'-. The indications are that there will be little 
aphid damage to vetch in 1935* 
GARDSII SLUG (A^rjolimax agrestis L. ). 
Oregon. L. P. Rockwood (February ° t ): Considerable damage to hairy vetch 
by the garden slug has been reported in the Willamette Valley. A 
few damaged fields have been seen. The damage appeared to have been 
clone by the feeding of slugs on the young vetch seedlings. In many 
cases these seedlings had been entirely consumed. Vetch seedlings 
were eaten first, then weed seedlings; oats were eaten but little. 
The damage was most extensive in fields where the vetch ha: 1 been 
disked in; vetch on plowed land was damaged but little. 
SUGARCANE 
SUGARCANE BORER (Diatraea saccharalis Fab.) 
Louisiana. V.. E. Hinds (February 25): Larvae in hibernation in cornstalks 
shov a decided increase in mortality following the second severe cold 
spell of the winter. Tne first severe cold snap occurred about Decem- 
ber 12, with minimum temperatures of from 19° to 22° F. at Baton Rouge 
and vicinity. On January 22 tne minimum fell to from 17° to 19°. We 
found only 1? percent of the larvae dead in old cornstalks, between 
January 15-22. From February 15-22, v'e found the mortality averaging 
around QO percent. This indicates an increase of about 75 percent in 
mortality, which may be attributed to the drop to 17° to 19°. 
ubrarv 
STATE PLANT BOARD 
