| Autor: |
Mohamed, H. Soliman, Hosnea, A. Afifi, Ola, M. Roshdy, Ahmed, I. Amer |
| Předmět: |
|
| Zdroj: |
Egyptian Journal of Plant Protection Research Institute; 2023, Vol. 6 Issue 2, p172-179, 8p |
| Abstrakt: |
Onion, Allium cepa L. belongs to the family Alliaceae and is an herbaceous winter vegetable. Onion is used approximately every day in a large variety of dishes as a fresh salad or added in cooking dishes. Thrips tabaci Lindeman (Thysanoptera: Thripidae) causes damage to onions by their rasping and sucking mouth parts affecting both the yield and viability of the seed yield. The water which is used in the spray solution causes degradation to insecticide as a result of heavy metals mixing with water. The specific objectives of the present study were to find out the effectiveness of the water magnetization on bio-efficacy to alpha cypermethrin against thrips infesting green onion compared with normal water. The present investigation was carried out at the Plant Protection Research Station, at Qaha station, Qalyubia governorate, Egypt during the winter 2021-2022. The results of statistical analysis reported that there were significant differences between each treatment in case of initial effect, after 3, 5, 7 and 14 days from spray. Whereas insignificant deference in case of residual effect after two applications. Concerning the first spray, magnetic water with alpha cypermethrin treatment was the most superior recording 85.44 % at initial effect, followed by alpha cypermethrin with un-magnetization water at 49.24 % and magnetic water recording 21.45 % reduction. The highest reduction of residual effect was 71.58 % for magnetic water with alpha cypermethrin followed by alpha cypermethrin with un-magnetization water 62.01 %, and magnetic water caused 49.48 % reduction to T. tabaci individuals. In the case of second application, concerning immediate annihilation (Initial effect) magnetic water with alpha cypermethrin comes in first order followed by alpha cypermethrin with un-magnetic water and magnetic water, respectively. The paper recommended that from necessary water magnetization before adding alpha cypermethrin. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
