Nsreen Dib*(1), Alisar Shaabow(1), Raid Zidan(2), Ammar Askarieh(1) , Amal Haj Hassan(1), and Lina Adraa(1)
(1) Agriculture Research Center in Lattakia, General Commission for Scientific Agricultural Research, (GCSAR), Lattakia, Syria.
(2) Department of Horticulture, Faculty of Agriculture, Tishreen University, Lattakia- Syria
(*Corresponding author: Dr. Nsreen Dib. E-Mail: nsreendibsh@gmail.com)
Received: 11/08/2022 Accepted: 20/06/2022
Abstract:
The study was conducted at Alsonawbar station of the Agricultural Scientific Research Center in Lattakia/ Syria on Maize (Zea mays L.) during 2021summer season, to estimate the efficacy of some insecticides and bio-pesticides in controlling corn stem bores sesamia sp and Chilo sp and its reflection on production. The experiment was laid out in eight treatments: (control, spraying with Oxamyl،Chlorpyrifos، Chromafenozide، Emamectin Benzoate, and bio-pesticides: Bacillus subtilis and two isolated of Beauveria Bassiana (b8, b10)). Results showed that all tested pesticides reduced the Infestation percentage even after two weeks of spraying. The highest effective pesticide was Chromafenozide 88% after two days of spraying. The tested pesticides varied in their effect on the production parameters. B. Bassiana b(8) treatment outperformed the rest of the treatments with an average production of 3.760 kg/plant, the number of the cobs also affected, where the highest number of cobs was recorded in Chlorpyrifos and B. Bassiana b(8) 19.33 and 18.00 cob/plant respectively. As for the length of the cob; B. Bassiana b(10) treatment outperformed the rest of the treatments and recorded 19.23 cm/cob.
Key words: Sesamia sp, Chilo sp, Maize, Efficacy, Insecticide, Bio pesticide, Production.
Full paper in Arabic: pdf