| Autor: |
Wakil, W., Ghazanfar, M. U., Ashfaq, M., Ali, K., Riasat, T. |
| Jazyk: |
němčina |
| Rok vydání: |
2010 |
| Předmět: |
|
| Zdroj: |
Julius-Kühn-Archiv, Iss 425, Pp 936-941 (2010) |
| ISSN: |
1868-9892 |
| Popis: |
The efficacy of diatomaceous earth against Callosobruchus maculatus (Coleoptera: Bruchidae) was evaluated on stored gram under laboratory conditions. The bioassay was conducted at 25 and 30°C in combination with 50 and 60% r.h. Diatomaceous earth (DE) formulation (Diafil 610), at the dose rates of 200, 400, 600 and 800 ppm was admixed with gram grains. Fifty unsexed adults of C. maculatus were released in each jar and treatments replicated thrice. Mortality data was recorded after 2, 3 and 5 days of exposure intervals and after every count the dead individuals were removed, and the commodity was maintained for an additional period of 25 d, in order to record the emergence of F1 adults. The results showed that all treatments were highly effective against the bruchids; however, the highest mortality (100%) was observed at 30°C and 50% relative humidity at 800 ppm of DE with minimal progeny production. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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