Vegetable Growing in Colorado. 
43 
are picking the adult beetles and their eggs from the plants early 
in the summer, and brushing the insect in all stages of develop¬ 
ment from the leaves upon the hot ground later in the season. To 
do this work successfully the day must be hot with the sun shining 
brightly, and only two or three hours of the warmest part of the 
day can be used. 
Arsenical poisons applied to the leaves will usually do more 
injury to the plants than to the bean beetles. 
SQUASH AND PUMPKIN. 
The Squash Bug {Anasa tristis). 
This large dark colored squash bug, often designated as “stink 
bug” because of its very disagreeable odor, has been credited with 
a great deal of injury to winter squashes in Colorado. I have been 
noticing its presence upon squash vines in Colorado for many years 
but have never yet seen a plant that I thought was seriously in¬ 
jured by it. When abundant enough to do serious harm, the bugs, 
in all sizes, accumulate upon individual leaves in sufficient numbers 
to cause them to wilt and die. 
Remedies .—The application of insecticides for the control of 
this insect, is not satisfactory. The best remedies are hand picking 
and destruction of the adult insects and their eggs early in the sea¬ 
son, and collecting the bugs later in the summer in a pan of water 
with a spoonful of kerosene on top. The latter method is most suc¬ 
cessful early in the morning when the bugs are inactive. 
The destruction of squash vines by the squash root maggot men¬ 
tioned below is commonly attributed to the squash bug. 
The Squash Root Maggot. 
During the middle of the summer, ■ almost any time after the 
winter squash vines have begun to run, they will sometimes wilt 
and die within a day or two. If these vines are examined, it will 
usually be found that the plants are being attacked at the crown, 
or root, by maggots, causing them to decay. As soon as the mag¬ 
gots are fully grown they leave the plants and burrow into the 
ground about the roots, where they undergo their transformation 
and later emerge as two-winged flies, very similar to our common 
house fly, but somewhat larger. 
Remedies .—When the plants die, the dirt immediately around 
the crown should be removed and the maggots or their pupae de¬ 
stroyed, which can easily be done by stamping the earth under foot. 
The flies may be prevented from depositing their eggs about the 
plants by placing a collar of tar-paper close about the crown. This 
should be done just before the vines begin to run. Part of the 
plants that can be spared should be left without the collar to catch 
the eggs and so serve as traps. 
