Biological control in rice cultivation of Araku valley, Visakhapatnam district, Andhra Pradesh: A boost to organic farming by tribal farmers
M Visalakshi, M Suresh and PB Pradeep Kumar
The objective of the programme is to increase the net incomes of small and marginal as well as women tribal farmers with the popularization of biological control in rice cultivation through frontline demonstrations, training programmes, exposure visits, fields days and rythusadassu. The Tribal farmers are exposed to ecofriendly low cost biological control techniques in rice cultivation which AICRP Biological control believes is a stepping stone for sustainable agriculture. During first year, 2015-16, Field release of Trichogramma japanicum and Trichogramma chilonis effectively reduced the stem borer damage ( 89.4%) and leaf folder damage ( 88.2%) resulted in higher yields (4025 kg/ ha) with biological control practices compared to 2100 kg / ha compared to traditional rice cultivation. Additional yield recorded by organic rice farmers was 1925kg/ha with additional income of Rs.19,250/- and incremental benefit cost ratio of 1: 4.4 compared to farmers practice of no fertilizer and no plant protection. during 2016-17, biological control in rice reduced the stem borer ( 87.2%), leaf folder damage ( 89.4% ) and recorded higher yields (4500 kg/ ha) with incremental benefit cost ratio of 1:5.63 compared to traditional rice cultivation (2300 kg/ha). Similarly, adoption of biological control gave higher rice yields (4625 kg/ ha) with incremental benefit cost ratio of 1:5.4 compared to farmers practice (2450 kg/ha) in 2019-20. Tribal farmers realized the use of Biological control in preventing pests and diseases in rice cultivation and expressed willingness to adopt the technology for achieving higher yields.
M Visalakshi, M Suresh, PB Pradeep Kumar. Biological control in rice cultivation of Araku valley, Visakhapatnam district, Andhra Pradesh: A boost to organic farming by tribal farmers. J Entomol Zool Stud 2020;8(6):67-69.