| Titles |
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English :
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Effectiveness of six plant oils on the protection of stored cowfea Vigna unjuiculata against the infestation of cowpea weevil callosobruchus maculatus (F.)
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Arabic :
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تأثير ستة أنواع من الزيوت النباتية لوقاية بذور اللوبيا من الإصابة بحشرة خنفساء اللوبيا Callosobruchus maculates
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| Abstract |
The effect of six plant oils of fenugreek, shallot, cabbage, juniper, frankincense and marjoram on the mortality, emerged adults and reduction in F1¬progeny of cowpea weevil Callosobruchus maculatus (F.) on cowpea seeds was studied. Some biological aspects, persistence, germination and water absorption for treated cowpea seeds were also studied.
All tested oils at higher concentration 8 and 10 ml/kg caused a high level of mortality after 3 days of exposure and gave complete mortality (100%) after 7 days of exposure.
The high effect on the mortality was continued up to 8 weeks for the marjoram, frankincense and cabbage oils, while fenugreek and shallot deteriorated after 4 weeks and juniper had a moderate persistence. All oils were deteriorated after 10 weeks exposure period.
The Lc50 values of the five oils caused high reduction in the mean number of eggs laid and hatchability except frankincense had a moderate reduction (46.2%). On the other hand at the Lc99 no eggs laid for all oils.
The percentage of water absorption in both initial time and after 10 weeks was increased at three times (one, 5 and 24hrs) whoever was found. A slight difference between the treated and untreated cowpea seeds was found in both times.
No effect of these oils on the percentage of the seed germination was detected.
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| Publication year |
2007
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| Pages |
1659-1669
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| Availability location |
معهد بحوث وقاية النباتات
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| Availability number |
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| Organization Name |
Plant Protection Research Institute (PPRI)
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| City |
مشتهر
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| serial title |
حوليات العلوم الزراعية بمشتهر
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| ISSN |
1110-0419
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| Author(s) from ARC |
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| Agris Categories |
Protection of plants - General aspects
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AGROVOC
TERMS |
Cabbages.
Callosobruchus maculatus.
Juniper.
Mortality.
Origanum.
Plant oils.
Shallots.
Trigonella foenum graecum.
Vigna unguiculata.
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| Publication Type |
Journal
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