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Observations and experiments on Triplosporium floridanum (entomophthorales) attacking spider mites in Israel
Year:
1972
Source of publication :
Journal of Invertebrate Pathology
Authors :
Plaut, Hans Naphtali
;
.
Volume :
19
Co-Authors:
Kenneth, R., Department of Plant Pathology and Microbiology, Faculty of Agriculture, Hebrew University of Jerusalem, Rehovoth, Israel
Wallis, G., Department of Plant Pathology and Microbiology, Faculty of Agriculture, Hebrew University of Jerusalem, Rehovoth, Israel
Gerson, U., Department of Entomology, Faculty of Agriculture, Hebrew University of Jerusalem, Rehovoth, Israel
Plaut, H.N., Volcani Institute of Agricultural Research, Newe Ya'ar, P.O. Haifa, Israel
Facilitators :
From page:
366
To page:
369
(
Total pages:
4
)
Abstract:
The fungus Triplosporium floridanum is common in various regions of Israel, attacking green and red forms of the two-spotted spider mite, Tetranychus telarius sensu lato. No resting spores have been found in this species in Israel. With dried, mummified, infected mites from the field, kept in vials for 6 weeks at 4°C, sporulation of associated T. floridanum was effected in moist chambers; after the dried mummies had been held for another 9.5 months at room temperature, the number of mites showing sporulating fungi in moist chambers remained very high. The fungus sporulated within an extremely wide temperature range, 4-37°C. Primary conidia were produced in less than a day at 6, 18, 27, 30, and 37°C, and anadhesive spores at 18, 27, and 30°C. After 2 days, anadhesive spores formed at 6°C as well. Heaviest sporulation occurred at 27† and 30°C. The longevity of the normal-appearing hyphal bodies within the mites after prolonged desiccation is considered to be a possible mechanism for tiding the fungus over periods during which the host is rare in the field. © 1972.
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More details
DOI :
10.1016/0022-2011(72)90235-2
Article number:
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:
ID:
24734
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:09
Scientific Publication
Observations and experiments on Triplosporium floridanum (entomophthorales) attacking spider mites in Israel
19
Kenneth, R., Department of Plant Pathology and Microbiology, Faculty of Agriculture, Hebrew University of Jerusalem, Rehovoth, Israel
Wallis, G., Department of Plant Pathology and Microbiology, Faculty of Agriculture, Hebrew University of Jerusalem, Rehovoth, Israel
Gerson, U., Department of Entomology, Faculty of Agriculture, Hebrew University of Jerusalem, Rehovoth, Israel
Plaut, H.N., Volcani Institute of Agricultural Research, Newe Ya'ar, P.O. Haifa, Israel
Observations and experiments on Triplosporium floridanum (entomophthorales) attacking spider mites in Israel
The fungus Triplosporium floridanum is common in various regions of Israel, attacking green and red forms of the two-spotted spider mite, Tetranychus telarius sensu lato. No resting spores have been found in this species in Israel. With dried, mummified, infected mites from the field, kept in vials for 6 weeks at 4°C, sporulation of associated T. floridanum was effected in moist chambers; after the dried mummies had been held for another 9.5 months at room temperature, the number of mites showing sporulating fungi in moist chambers remained very high. The fungus sporulated within an extremely wide temperature range, 4-37°C. Primary conidia were produced in less than a day at 6, 18, 27, 30, and 37°C, and anadhesive spores at 18, 27, and 30°C. After 2 days, anadhesive spores formed at 6°C as well. Heaviest sporulation occurred at 27† and 30°C. The longevity of the normal-appearing hyphal bodies within the mites after prolonged desiccation is considered to be a possible mechanism for tiding the fungus over periods during which the host is rare in the field. © 1972.
Scientific Publication
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