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application see page 3)* This material is not effective against the pinworm, 
russet mite, hornworms, or the "beet armyworm, and should not "be used in 
localities where these pests usually cause damage. 
Hornworms . — The regular applications of cryolite or calcium arsenate for 
fruitworm and pinworm control ordina.rily give satisfactory control of these 
insects. In cases of severe infestation it may "be necessary to make one or 
more supplementary applications of undiluted calcium arsenate for the control 
of these pests. Calcium arsenate has proved superior to cryolite for the 
control of these insects, and, if a regular cryolite schedule is "being 
followed for pinworm control, calcium arsenate should be applied in the 
interval "between the regular applications. If the pinworm is not a serious 
menace, then calcium arsenate can "be used for one or more of the regular 
fruitworm applications. 
Other Insects 
Cutworms and the beet armyworm may also be present in the same field 
with the tomato fruitworm, pinworm, hornworms, and russet mite. Ordinarily 
the rogula.r applications for the control of either the fruitworm or the pin- 
worm will adequately control these insects, but in epidemic years, or in 
unusual infestations, special treatments may be necessary as outlined below. 
Beet armyworm . — This insect usually attacks only tomatoes which mature 
in the fall, and in ordinary years the rogula.r "worm" applications give satis- 
factory control of the beet armyworm. In epidemic years of this insect, it 
may be necessary to make extra applications of undiluted calcium arsenate 'to 
the plants when they are small and previous to the regular fruitworm or pin- 
worm applications, and if cryolite is being used in the regular fruitworm or 
pinworm applications, calcium arsenate should be substituted for cryolite in 
one or more of these applications, or else an additional application of 
calcium arsenate for armyworm control should be 'made. In our experiments it 
has been demonstrated tha.t calcium arsenate is superior to cryolite in the 
control of the beet armyworm. 
Cutworms .— In southern California the regular dusting program for the 
tomato fruitworm has given excellent control of cutworms when they have 
attacked the plants during the fruiting period. But at times severe infesta- 
tions will occur on young plants before the time for the regular fruitworm 
treatment schedule begins. Such infestations must be handled immediately, or 
many plants will be killed outright. Control can be accomplished by either 
dusting the plants with 70-P Prccn "k cryolite or undiluted calcium arsenate, or 
by preparing a ba.it composed of U pounds of paris green, 100 pounds of wheat 
bran, and sufficient water to make a crumbly mash. Ten pounds of the dust or 
bran ba.it is sufficient to cover an acre. The dust should bo applied 
primarily to the stem of the plant, and the bait should be scattered around 
the base of the plant, preferably in the evening. Sodium fluosilicate may be 
substituted for paris green in the bait mixture. 
Warn ing 
A ll the materials recommended in this circular are likely to leav e 
insect icidal residues on the fruit if they are applied within 2 we eks of the 
time the fruits arc harvested. In cases where excess residue is present, the 
