Comparison of Single and Repeated Bacillus thuringiensis (Bt) Applications in Controlling Multi-stage Outbreaks of Pteroma pendula (Lepidoptera: Psychidae) in Perak
Noorhazwani Kamarudin1; Siti Nurulhidayah Ahmad1; Mohamed Mazmira Mohd Masri1; Nur Robaatul Adhawiyah Mohd Ali Napiah1 and Mohd Fahmi Keni1