The potential of middle eastern flora as a source of new safe bio-acaricides to control<Emphasis Type="Italic">Tetranychus cinnabarinus</Emphasis>, the carmine spider mite |
| |
| Authors: | F?Mansour Email author" target="_blank">H?AzaizehEmail author B?Saad Y?Tadmor F?Abo-Moch O?Said |
| |
| Institution: | (1) Dept. of Entomology, ARO, Newe Ya’ar Research Center, 30095 Ramat Yishay, Israel;(2) The Galilee Society, R&D Regional Center (affiliated with Haifa University), 20200 Shefa-Amr, Israel;(3) Dept. of Allied Medical Sciences, The Arab American University, Jenin (AAUJ), Palestinian Authority;(4) Inst. of Vegetable and Field Crops, ARO, New Ya’ar Research Center, 30095 Ramat Yishay, Israel |
| |
| Abstract: | Twenty-nine plant extracts of local species were evaluated for their potential as a source of bioactive ingredients with significant
acaricidal activity that could lead to the development of new and safe bio-acaricides. The crude extracts (70% ethanol) of
these plants were tested for their acaricidal activity against the carmine spider miteTetranychus cinnabarinus in a bioassay under controlled conditions. Mortality, repellency, and the number of eggs laid were measured. Extracts fromEucalyptus camaldulensis andInula viscosa caused more than 25% mortality. Sixteen plant extracts showed significant repellency compared with the control. The six best
extracts, resulting in more than 75% repellency, were fromAllium sativum, Capparis spinosa, Cupressus sempervirens, Lupinus pilosus, Rhus coriaria andTamarix aphylla. Extracts from 16 plants were found to cause a significant reduction in the number of eggs laid compared with the control.
The greatest reduction was achieved by extracts fromC. spinosa, Cyperus rotundus, E. camaldulensis, L. pilosus, Punica granatum, R. coriaria andT. aphylla. A relatively negative fit was found between the mean number of repelled mites and the number of eggs laid (r=−0.65), which
might indicate that most repelled mites were unable to lay eggs before leaving the leaf discs of the bioassay. Our results
show that several plant extracts have good potential for acaricidal activity and are worth further investigation.
http://www.phytoparasitica.org posting Dec. 16, 2003. |
| |
| Keywords: | Tetranychus cinnabarinus plant mites botanical pesticides repellency reduction of fecundity |
| 本文献已被 SpringerLink 等数据库收录！ |
|
