es 
occyrring in shattered peas on the soil sur face under otherwise similar 
conditions (26. 5 percent versus 89. 8. percent ). In stored peas from the 
same field but kept under ordinary storage conditions only 5-5 ‘percent 
of the weevils died. The tests wére begun on August 9, 1933, and final 
examinations of the peas were made from November 19 to Decanber 17s ae 
is probable that high temperatures end desi¢cation accounted for most of 
the weevil mortality in the peas involved in the testse Daily maximum 
air temperatures ranging from 87° ‘to 95° F. were recorded during the 
period from August 9 to 13, and a. maximum soil temperature of 130° Fe 
was recorded on August 10 and again on August 14. Judging from the rew 
sults obtained in these tests; a high degree of pea weevil mortality 
could be induced by running a roller or a drag over an infested field 
. to break-open the pods and to press the peas into the soil. These 
measures would be especially applicable tn fields where the vines are 
cut and hauled to a stationary thresher, leaving the ground nearly de~ 
void of straw; as a supplementary control measure on burned fields, 
where certain spots escaped the fire; or on garden plots after the vines 
have been gathered and burn eds 
How the pea weevil ingests. eer On Larson, comartiay Oregey 
- reports that the principal food of the pea weevil is the pollen of the 
pea flower, and that it feeds very little on any other part of the plante 
Poison applied to the peas when in blossom do not reach the pollen, yet 
such treetments kill the weevile Observations thus far have indicated 
.that the poisonous dusts are taken into the weevil's body very largely 
throgh its habit of cleaning its fore tarsi. Weevils pladed in a petri 
dish with a very small quantity of dust soon gathered comparatively large 
quantities of dust on their feet. They frequently stopped and drew the 
fore tarsi, and sometimes the distal half of the fore tibiae, through 
their mouthparts.. The middle legs are cleaned by scraping them against 
the fore and hind legs, and the sind legs are brushed against the middle 
legse The middle tarsi may be scraped by the fore tarsi directly under 
the mouthparts and the fore. tarsi drawn through the mouth several timese 
Observations with binoculars brought out quite clearly that the fore 
tarsi were used to clean the middle tarsi and that they carried the poi-# 
son to the mouthe Only on one occasion was a weevil observed cleaning 
its antennae. It did this by scraping it with the fore tarsi. The 
weevils in. petri dishes were not. observed to pick up dust particles by 
touching their mouthparts to the dusted surfaces on which they were walk~ 
ing, but those observed on caged pea vines sometimes touched their mouths 
to the plant when they came to a leaf or a tendril or some obstruction 
that caused them to change their directions 
Spring migration of leaf hoppers to beets early in Modesto, Calif., 
eareae--We Ce Cook, of the Modesto, Calif., laboratory, reports as follows? 
"The migration of the beet leaf hopper (Butettix tenellus Bak.) from the 
foothills to. the beets and. summer host plants occurred several weeks 
earlier than in 194%, because of the more advenced season and the earlier 
drying of the foothill vegetation, The first movement was ‘noticed in 
the Modesto area late in March, and the leaf hoppers reached the lower 
