Description
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H. antonii SIGN is a genus of Helopeltis that can cause damage to several plantation crops. Damage inflicted is around 33-60%. Lush and humid plants can cause more severe damage. Various studies to control these pests have been carried out, one of which is the use of botanical pesticides. Research on the effectiveness of the tuba root formula to suppress the H. antonii population has been carried out in the laboratory and greenhouse of the Bogor Spice and Medicinal Crops Research Institute from August to September 2021.In this study, various formulas were used with the active ingredient of tuba root extract with ethanol and methanol solvents as well as additional CPO, detergent, and organic silicon. The treatments were arranged as follows: 1) control, 2) tuba root extract with water solvent with a concentration of 5, 10, and 15 m /liter of water, 3) tuba root extract with ethanol solvent with the same concentration, 4) tuba root extract with methanol solvent, also with the same concentration, which were all arranged in a Completely Randomized Design and 3 replications. Observations were made on 1, 3, 6, 24, 48, 72, 96, 120, and 168 Hours After Treatment by counting the number of dead andsurviving insects. Data analysis was carried out through DMRT and determination of the effectiveness of the formula using LC50. The results showed that the best formula was the formula using methanol as a solvent with a concentration of 10 ml and an LC50 value of 1670 ppm. Kata kunci :Derris elliptica BENTH, effectiveness, formula, Helopeltis antonii SIGN (2023-02-03)
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