נגישות
menu      
Advanced Search
Syntax
Search...
Volcani treasures
About
Terms of use
Manage
Community:
אסיף מאגר המחקר החקלאי
Powered by ClearMash Solutions Ltd -
Survival and Efficacy of Steinernema carpocapsae in an Exposed Environment
Year:
1992
Source of publication :
Biocontrol Science and Technology
Authors :
Glazer, Itamar
;
.
Volume :
2
Co-Authors:
Glazer, I., Department of Nematology, ARO, The Volcani Center, 50250 Bet Dagan, Israel
Facilitators :
From page:
101
To page:
107
(
Total pages:
7
)
Abstract:
Factors affecting the persistence and activity of the infective juveniles (IJs) of the nematode Steinernema carpocapsae ‘ Mexican ‘ strain on the foliage of bean plants were determined at 45, 60 and 80% relative humidity (RH). The rate of nematode mortality was related to the RH. A gradual reduction in nematode survival was recorded during a 6 h exposure period at 80% and 60% RH, whereas at 45% RH high mortality was observed within 2 h. Addition of the antidesiccant Folicote ‘ (6% w/w) to the nematode suspension was most effective in ensuring IJ survival at 60% RH, resulting in 38—60% increase in viability during 6 h of exposure. At 80% RH Folicote ‘ treatment resulted in only 10—20% increase in IJs viability, as compared with non-treated IJs. At 45% RH, Folicote’ treatment did not significantly increase IJ survival (P>0.05). Survival of the IJs on tomato and soybean leaves was 30–35 % higher than of those recovered from leaves of cotton, pepper and bean as well as from filter paper. At 60% RH, IJ movement ceased within 45 — 60 min of exposure and the nematode body shrank. However, nematode pathogenicity remained almost unaltered up to 4 h of exposure, resulting in 75% mortality of larvae of the Egyptian cotton worm Spodoptera littoralis. A drastic reduction in the nematodes efficacy was recorded when the insects were introduced 6 and 8 h after nematode application. © 1992, Taylor & Francis Group, LLC. All rights reserved.
Note:
Related Files :
Egyptian cotton worm
Mexican) '
nematode
Steinernema carpocapsae
Show More
Related Content
More details
DOI :
10.1080/09583159209355223
Article number:
0
Affiliations:
Database:
Scopus
Publication Type:
article
;
.
Language:
English
Editors' remarks:

Itamar's own PDF.

ID:
29633
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:48
You may also be interested in
Scientific Publication
Survival and Efficacy of Steinernema carpocapsae in an Exposed Environment
2
Glazer, I., Department of Nematology, ARO, The Volcani Center, 50250 Bet Dagan, Israel
Survival and Efficacy of Steinernema carpocapsae in an Exposed Environment
Factors affecting the persistence and activity of the infective juveniles (IJs) of the nematode Steinernema carpocapsae ‘ Mexican ‘ strain on the foliage of bean plants were determined at 45, 60 and 80% relative humidity (RH). The rate of nematode mortality was related to the RH. A gradual reduction in nematode survival was recorded during a 6 h exposure period at 80% and 60% RH, whereas at 45% RH high mortality was observed within 2 h. Addition of the antidesiccant Folicote ‘ (6% w/w) to the nematode suspension was most effective in ensuring IJ survival at 60% RH, resulting in 38—60% increase in viability during 6 h of exposure. At 80% RH Folicote ‘ treatment resulted in only 10—20% increase in IJs viability, as compared with non-treated IJs. At 45% RH, Folicote’ treatment did not significantly increase IJ survival (P>0.05). Survival of the IJs on tomato and soybean leaves was 30–35 % higher than of those recovered from leaves of cotton, pepper and bean as well as from filter paper. At 60% RH, IJ movement ceased within 45 — 60 min of exposure and the nematode body shrank. However, nematode pathogenicity remained almost unaltered up to 4 h of exposure, resulting in 75% mortality of larvae of the Egyptian cotton worm Spodoptera littoralis. A drastic reduction in the nematodes efficacy was recorded when the insects were introduced 6 and 8 h after nematode application. © 1992, Taylor & Francis Group, LLC. All rights reserved.
Scientific Publication
You may also be interested in