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קהילה:
אסיף מאגר המחקר החקלאי
פותח על ידי קלירמאש פתרונות בע"מ -
Biological activity of two juvenoids and two ecdysteroids against three stored product insects
Year:
2000
Authors :
עצמי, שולמית
;
.
קוסטיוקובסקי, משה
;
.
שעיה, אלי
;
.
Volume :
30
Co-Authors:
Kostyukovsky, M., Department of Stored Products, ARO, the Volcani Center, 50250, Bet Dagan, Israel
Chen, B., Department of Plant Protection, SW. Agricultural University, 400716, Chonqing, China
Atsmi, S., Department of Stored Products, ARO, the Volcani Center, 50250, Bet Dagan, Israel
Shaaya, E., Department of Stored Products, ARO, the Volcani Center, 50250, Bet Dagan, Israel
Facilitators :
From page:
891
To page:
897
(
Total pages:
7
)
Abstract:
The insecticidal activity of juvenile hormone agonists methoprene and pyriproxyfen, and the ecdysone agonists RH-5849 and tebufenozide was evaluated against susceptible and actellic-resistant strains of Tribolium castaneum and susceptible strains of Rhyzopertha dominica and Sitophilus oryzae. Concentrations ranging from 0.1 to 20 ppm of the analogues were mixed in the food medium to which the tested insects were exposed. The results showed that all these compounds could affect the development of the tested species to differing extents but had no effect on the mortality of parental adults. The two JH analogues did not prolong the life span of R. dominica and S. oryzae, but very greatly extended that of T. castaneum. The extension led to the production of giant larvae and failure to pupate. Actellic-resistant strain of T. castaneum showed some cross-resistance to methoprene and pyriproxyfen, but not to RH-5849 and tebufenozide. Pyriproxyfen was the most effective compound among the four IGRs; a concentration of 0.1 ppm could completely inhibit the F1 adult occurrence of both S- and R-strains of T. castaneum and its LC90s for controlling R. dominica and S. oryzae were 0.1 and 1.2 ppm, respectively. Methoprene was highly effective against R. dominica, but less active on S. oryzae. RH-5849 could achieve almost complete control of F1 adults of T. castaneum and R. dominica at 10 ppm, but was less potent on S. oryzae. Tebufenozide appeared to be much less active on these three species compared with the other three compounds. The percentage reductions of F1 adults for S- and R-strains of T. castaneum at a concentration of 20 ppm were 80 and 99%, respectively. (C) 2000 Elsevier Science Ltd.
Note:
Related Files :
Animal
Animals
animal tissue
Conference paper
insect hormones
insecticides
metamorphosis
Pyriproxyfen
Steroids
Tribolium
עוד תגיות
תוכן קשור
More details
DOI :
10.1016/S0965-1748(00)00063-1
Article number:
Affiliations:
Database:
סקופוס
Publication Type:
מאמר מתוך כינוס
;
.
Language:
אנגלית
Editors' remarks:
ID:
27007
Last updated date:
02/03/2022 17:27
Creation date:
17/04/2018 00:27
Scientific Publication
Biological activity of two juvenoids and two ecdysteroids against three stored product insects
30
Kostyukovsky, M., Department of Stored Products, ARO, the Volcani Center, 50250, Bet Dagan, Israel
Chen, B., Department of Plant Protection, SW. Agricultural University, 400716, Chonqing, China
Atsmi, S., Department of Stored Products, ARO, the Volcani Center, 50250, Bet Dagan, Israel
Shaaya, E., Department of Stored Products, ARO, the Volcani Center, 50250, Bet Dagan, Israel
Biological activity of two juvenoids and two ecdysteroids against three stored product insects
The insecticidal activity of juvenile hormone agonists methoprene and pyriproxyfen, and the ecdysone agonists RH-5849 and tebufenozide was evaluated against susceptible and actellic-resistant strains of Tribolium castaneum and susceptible strains of Rhyzopertha dominica and Sitophilus oryzae. Concentrations ranging from 0.1 to 20 ppm of the analogues were mixed in the food medium to which the tested insects were exposed. The results showed that all these compounds could affect the development of the tested species to differing extents but had no effect on the mortality of parental adults. The two JH analogues did not prolong the life span of R. dominica and S. oryzae, but very greatly extended that of T. castaneum. The extension led to the production of giant larvae and failure to pupate. Actellic-resistant strain of T. castaneum showed some cross-resistance to methoprene and pyriproxyfen, but not to RH-5849 and tebufenozide. Pyriproxyfen was the most effective compound among the four IGRs; a concentration of 0.1 ppm could completely inhibit the F1 adult occurrence of both S- and R-strains of T. castaneum and its LC90s for controlling R. dominica and S. oryzae were 0.1 and 1.2 ppm, respectively. Methoprene was highly effective against R. dominica, but less active on S. oryzae. RH-5849 could achieve almost complete control of F1 adults of T. castaneum and R. dominica at 10 ppm, but was less potent on S. oryzae. Tebufenozide appeared to be much less active on these three species compared with the other three compounds. The percentage reductions of F1 adults for S- and R-strains of T. castaneum at a concentration of 20 ppm were 80 and 99%, respectively. (C) 2000 Elsevier Science Ltd.
Scientific Publication
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