Florida Agricultural Experiment Station


weeds. The attacked
spotted, "peppered"









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FIG. 89.- (Pachymerus 4 -
maculatus): a, Adult; b,
c, egg from above and
 below; d, head of ma-
 ture larva. Greatly en-
 larged. (From U. S. Bur.
 of Ent.)


spots turn yellow, giving the plant a
appearance. The insect may be con-
trolled readily by tobacco extracts.
 COWPEA SEED-WEEVILS
 Two species of weevils, the four-
 spotted, weevil (Pachymerus 4-macula-
 ta) (fig. 89) and the Chinese weevil
 (Pachymerus chinensis) (fig. 90), both
 closely related to the bean-weevil
 (see under beans, page 132), do about
 the same character of damage to cow-
 peas as their relative does to beans.
 The bean-weevil also occasionally at-
 tacks cowpeas and either or both of
 the cowpea weevils often attack beas.
 They begin their work in the field but


 I I
FIG. 90.-Pachymerus chinensis: a, Adult;
 b, egg; c, larva. About seven times
 natural size. (From U. S. Bur. of Ent.)


it is in stored peas that they are especially injurious. These should
be fumigated or heated following directions for stored seeds. If
cowpeas are kept in cold storage at a temperature below 34 de-
grees for 2 or 3 months, the eggs, as well as weevils, are destroyed.
 OTHER COWPEA PESTS
 Other insects attacking cowpeas are: Wireworms (see
page 153); cutworms (see page 137); leaf-footed plant-bugs
(see page 178) ; and lesser corn stalk-borer (see page 132. The
harlequin cabbage bug (see page 148) attacks the pods.
 CUCUMBERS
 PICKLE WORM (Diaphania nitidalis)
 Cucumbers and cantaloupes with holes bored into them
(fig. 91) are common to Florida growers, more common some
years than others. Two species of insects are responsible for