ANALYSIS OF BATOPANG (BIOINSECTICIDE OF BROTOWALI STEM EXTRACT AND KETAPANG LEAVES) BASED ON SNI 02-3128-1992 AND EFFECTIVENESS TEST AGAINST WOOD GRASSHOPPER (VALANGA NIGRICONIS) WITH THE METHOD LETHAL CONCENTRATION 50. JARES (Journal of Academic Research and Sciences), [S. l.], v. 6, n. 1, p. 40–54, 2021. DOI: 10.35457/jares.v6i1.1408. Disponível em: https://ejournal.unisbablitar.ac.id/index.php/jares/article/view/1408. Acesso em: 2 feb. 2026.