Florida Agricultural Experiment Station


the host is crushed or destroyed, the parasitic allies are also
killed. This is, of course, true of any parasitized insect. Never
killed a parasitized insect.

 WHITE-LINED MORNING-SPHINX (Celerio lineata)

 Its larvae occasionally infest the tomato, altho its favorite
food-plants are certain weeds, especially of the purslane family.











 FIG. 111.-Hornworm parasitized by braconid-flies (Apantales con-
 gregatus). (Fla. Agr. Exp. Sta. Bul. 48.)
It belongs to the same family as the tomato sphinx, which it re-
sembles in general shape but is brighter in color.
 The same methods of hand-picking and spraying with
arsenate of lead are recommended for this species also.

 WHITE MOLD (Eriophyes cladophthirus)
 This is a disease of the tomato characterized by general
fuzziness. In its first stages it may be recognized from the
following description by P. H. Rolfs in Bul. 91, Fla. Agr. Exp.
Sta.:
 "If one is standing in a tomato field shortly after sunrise, or near
sunset, and looking across the field in the direction of the sun, the plants
which are attacked will be easily distinguished from the others in the
field by a peculiar white, fuzzy appearance of the upper portion of the
stem."
 In spite of its name "mold," it is not caused by a fungus
parasite, but, as was determined by P. H. Rolfs in 1892, by a
small mite closely related to the rust mite of citrus. This mite
is almost peculiar to Florida, for altho it occurs as far north as
South Carolina, it is rarely seen as a tomato pest outside of
this State.
 The remedy is the same as for its close relative, the rust
mite of citrus, which is, sulphur. In this case the sulphur is