EVALUATION OF SOME PLANT OILS ACTIVITY AS ENVIRONMENTAL SAFE PESTICIDES AGAINST SOME OF VEGETABLES AND FRUIT PESTS
Nashwa Elsayed Mousa Diab;
Abstract
Red spider (Tetranychus urtica) is one of many plant species feeding mites, which
cause large agricultural losses. Different extracts of Seeds of linseed, neem, and garlic
were prepared using hexane, ethyl acetate, ethanol and distilled water. These extracts
were investigated as acaricides by evaluate of their ability to protect plants from mite
injury. The red spiders were spread on green bean seedlings for one week then the plants
were sprayed with different concentrations of
these plant extracts
(50,250,1000,2000,5000 ppm), for three times. The results showed that linseed hexane
extract caused a complete mortality all red spider after 24h of treatment and followed
with neem ethanolic extract and garlic ethyl acetate extract which showed an acaricidal
activity against red spider in dose and time dependent manners. Also, linseed aqueous
extract and neem hexane extract inhibit acetyl cholinesterase (AChE) by 46.4% and
41.6% respectively compared to control. In addition protease activity was declined due
to treatment with 5000 ppm linseed ethyl acetate extract and garlic aqueous extract by
92.27% and 86.91% respectively compared to control.
cause large agricultural losses. Different extracts of Seeds of linseed, neem, and garlic
were prepared using hexane, ethyl acetate, ethanol and distilled water. These extracts
were investigated as acaricides by evaluate of their ability to protect plants from mite
injury. The red spiders were spread on green bean seedlings for one week then the plants
were sprayed with different concentrations of
these plant extracts
(50,250,1000,2000,5000 ppm), for three times. The results showed that linseed hexane
extract caused a complete mortality all red spider after 24h of treatment and followed
with neem ethanolic extract and garlic ethyl acetate extract which showed an acaricidal
activity against red spider in dose and time dependent manners. Also, linseed aqueous
extract and neem hexane extract inhibit acetyl cholinesterase (AChE) by 46.4% and
41.6% respectively compared to control. In addition protease activity was declined due
to treatment with 5000 ppm linseed ethyl acetate extract and garlic aqueous extract by
92.27% and 86.91% respectively compared to control.
Other data
| Title | EVALUATION OF SOME PLANT OILS ACTIVITY AS ENVIRONMENTAL SAFE PESTICIDES AGAINST SOME OF VEGETABLES AND FRUIT PESTS | Authors | Nashwa Elsayed Mousa Diab | Issue Date | 2017 |
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