Generation of Wood-waste Vinegar and Its Effectiveness as a Plant Growth Regulator and Pest Insect Repellent

Abstract

Wood vinegar (WV) was obtained from charcoal production byproducts. The increase in demand for WV as an alternative pesticide requires more production of WV independent of conventional charcoal production. This research was intended to commence the production of WV from available furniture wood waste. The study included the following: (i) the preparation and performance of a pyrolysis kiln; and (ii) the application of the produced WV as a plant growth regulator of papaya plants in the nursery and as a pest insect repellent during maize storage. These experiments were arranged in a randomized block design. The observed variables included pyrolysis rate, the effect of WV on papaya growth in nursery, and the effect of WV in controlling infestation of maize weevils. The data were analyzed using analysis of variance and continued with Duncan's multiple difference test. The results showed that while the production of WV continuously occurred until the 90 th min, the maximum (139 mL) was reached at the 10 th min. Pyrolysis of 1,000 g of chips of wood-planer's waste yielded WV, tar, bio-oil, and char in quantities of 487.67 mL, 41.76 g, 2.93 mL, and 222 g respectively. The treatment using WV (50 mL/L) increased the diameter of papaya stems in the nursery. Mixing and fuming application of 5 mL of WV as a pest insect repellent on 200 g of maize on the storage could increase the number of the dead maize weevil and reduce the damage maize kernel.

Mahogany Wood-Waste Vinegar as Larvacide for Spodoptera litura

“…This demonstrated that WV has an insect repellent effect. As reported by Rahmat et al (2014b), teak WV could suppress the appetite of Sitophilus zeamais, thus reducing infestation during corn kernel storage.…”

“…The WV-generating process was carried out following the procedure of Rahmat et al (2014b). Wood chip waste (1,000 g) with a water content of 20% was used as feedstock per unit of WV produced.…”

The Effectiveness of Teak Wood-Sawdust Liquid Smoke and Areca-Nut Extract as a Pesticide on Pomacea canaliculata

“…While the combination treatment was done by mixing LS and AE according to the treatment needs so that the partial concentration of the components can be calculated. The LS-producing process was carried out following the procedure of (Rahmat et al, 2014). Sawdust waste (1,000 g) with a water content of 20% was used as feedstock per unit of LS produced.…”

“…The effect of Liquid Smoke (LS) on corn seed pest (Sitophillus zeamis) turned out to work as an insect repellent not as an insecticide (Rahmat et al, 2014). Likewise the effect on armyworm (Spodoptera litura) as anti-feed ant was not as a larva ide (Rahmat et al, 2015).…”

Studi Kerusakan Semai Laban (Vitex pubescens) oleh Serangan Ulat Pelipat Daun (Cnaphalocrocis medinalis)

“…Selain itu, cuka kayu yang berasal dari kayu laban cukup efektif untuk mengendalikan beberapa penyakit tanaman. Beberapa penyakit tanaman yang dapat dikendalikan menggunakan cuka kayu yang berasal dari laban diantaranya pengendalian penyakit jamur (Oramahi & Yoshimura, 2013;Purba, Ashari, Wahdina & Diba, 2015;Wahdina, Diba & Oramahi 2012), rayap pohon (Oramahi & Yoshimura, 2013;Oramahi, Zainal & Diba 2014;Prawira, Oramahi, Setyawati & Diba 2013) (Rahmat, Pangesti, Natawijaya & Sufyadi, 2014), jamur akar pada semai Pinus merkusii (Purba et al, 2015;Wahdina et al, 2012).…”