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L.P.S. VAN DER GEEST
Figure 9. Rubber tree leaves with numerous cadavers of Calacarus heveae. The
mites have been killed by the fungus Hirsutella thompsonii. However, the
disease cannot prevent substantial economic damage to the rubber
plantations in Itiquira, MG, Brazil, as the epidemics come too late in the
season. Photograph courtesy of Dr. Marcel R. Tanzini.
Figure 10. Calacarus heveae (Eriophyidae), killed by Hirsutella thompsonii. Photograph
courtesy of Dr. Marcel R. Tanzini.
4.2.2. Other Deuteromycetes Infecting Mites
Some of the other Deuteromycetes are probably the most comprehensively studied
entomopathogenic fungi. However, of these fungi, only few records have been made
of natural infections in mites. Leatherdale (1965) observed a mycosis of the
blackcurrant mite Cecidophyopsis ribis by Paecilomyces eriophytis, later also found