File: <blast1.ima.htm> [For educational purposes only] Terminology Glossary <Principal Natural
Enemy Groups > <Citations> |
Immature Stages
of Blastobasidae
Detailed information on immature
stages of Blastobasidae is being acquired.
However, Glover (1933) observed the eggs of Holcoera pulverea
Meyr. to be laid singly on either adult female scales, empty male cocoons or
twigs having a heavy growth of sooty-mold fungus. The young larvae feed on the body contents of the scale as well
as on the waxy covering. A maximum of
45 adult female scales may be killed, and the wax covering partly destroyed
by each larva during its feeding period.
There are 5 generations each year, and the winter is passed mostly as
eggs. These eggs appear to be very
susceptible to changes in the weather, for there is a high winter mortality
and the great majority of those laid during June are killed by high
temperatures. The larvae of Holcocera persicae
F. Have developed the habit of feeding on citrus fruit in California
(Basinger 1924). They make holes or
channels into oranges that are similar to those made by Tortrix citrana
Fern. References: Please refer to <biology.ref.htm>,
[Additional references may be
found at: MELVYL Library ] |