larvae are nearly full grown and are hard 
to kill. Some insecticides are quite effec- 
tive in killing larvae when they are small, 
but are only partially effective in killing 
them in tobacco plant beds in the spring. 
However, the insecticides recommended 
in this publication will kill larvae of all 
SIZES. 
Fumigant 
Methyl bromide, properly applied as 
a soil fumigant for control of weeds on 
plant-bed sites, will rid the beds of 
Apply it before the bed area is 
For best results, 
larvae. 
seeded. thoroughly 
BN-13691-x 
A, Part of a tobacco plant bed up- 
rooted by green June beetle larvae 
before plants appeared. 
B, Part of bed where plants have been 
destroyed by burrowing of the 
larvae. 
plow or disk the soil and level it before 
treatment. Use a polyethylene cover to 
retain the fumes, and fumigate the entire 
area with methyl bromide at the rate of 
9 pounds to each 100 square yards. 
Drenches 
Probably the simplest and easiest way 
to control larvae is to usea drench. You 
can prepare an effective drench by mix- 
ing water with a 50-percent soluble 
powder of Dylox, or a wettable powder 
that contains 50 percent of Sevin or 25 
percent of Thiodan or Diazinon; use 
only one of these materials. Mix 1 
pound of the powder in each 100 gallons 
of water. You may use an ordinary 
sprinkling can to pour the mixture over 
the soil surface at the first sign of uproot- 
ing. Apply it any time of the day, at the 
rate of 1 gallon to each square yard. 
Baits 
A poisoned bait can give excellent 
control. Its disadvantage is that the user 
must prepare it. 
To prepare a bait, mix 1 pound of 50- 
percent Dylox soluble powder with 
each 25 pounds of wheat middlings 
(sold as hog feed). Mix the insecticide 
and wheat middlings thoroughly. Then, 
while stirring, slowly add enough water 
to make a crumbly mash; 2 to 214 gal- 
lons of water will be needed. 
Before applying bait, sprinkle the area 
to be treated with water; this increases 
burrowing activity of the larvae, and 
makes it more likely that they will obtain 
the bait. 
Spread the bait broadcast in the after- 
noon, at the rate of 18 pounds wet 
weight to each 100 square yards of up- 
rooted area. 
