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Journal : Dinamika Pertanian

UJI EFEKTIVITAS BEBERAPA KONSENTRASI EKSTRAK DAUN KETAPANG (Terminalia catappa L.) TERHADAP ULAT GRAYAK (Spodoptera litura) SECARA IN VITRO Riski Nella Sari Batubara; Yusmar Mahmud; Rita Elfianis
DINAMIKA PERTANIAN Vol. 37 No. 1 (2021): Jurnal Dinamika Pertanian Edisi April 2021
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/dp.2021.vol37(1).7715

Abstract

Spodoptera litura is one of the important plant pests that are polyphagic. Spodoptera litura attacks can cause damage to up 80% on plants causing losses for framer. Control using synthetic pesticides is excessive because it causes negative for environment. Efforts that can be made are using biopesticides such as Terminalia catappa L. leaves. This research aims to obtain effective concentrations in controlling Spodoptera litura in vitro. The research was carried out in Pathology, Entomology and Microbiology, Faculty of Agriculture and Animal Husbandry and experimental farm of State Islamic University of Sultan Syarif Kasim from February to March 2019. This research used a Completely Randomized Design with 5 treatments, consisting of control, 9% EDK, 18% EDK, 27% EDk and 36% EDK with 3 replications. The parameters used are larvae stop eating (%), speed of death, mortality, toxicity of LC50 and larvae become pupae (%). The result showed the effective concentration in controlling Spodoptera litura was EDK 18%.
APLIKASI KONSENTRASI EKSTRAK DAUN Annona muricata L. TERHADAP Spodoptera litura F. PADA TANAMAN KEDELAI Fitri Sundari; Yusmar Mahmud; Tahrir Aulawi
DINAMIKA PERTANIAN Vol. 37 No. 2 (2021): Jurnal Dinamika Pertanian Edisi Agustus 2021
Publisher : UIR Press

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Spodoptera caterpillars belong to the category of pests that cause serious damage to crops, therefore, to improve crops, environmentally friendly herbicides such as sorrel are needed. The aim of this research was to obtain a sorrel leaf extract that is effective in controlling Spodoptera. The study was carried out in the Laboratory of Pathology, Microbiological Entomology, Soil and Experimental Farm of the Faculty of Agriculture and Animal Sanctity, Sultan Syarif Kasim Riau National Islamic University, and the Chemistry Laboratory of the Faculty of Mathematics of Natural Sciences of Riau University from February to March 2019. This study used a non-factorial complete randomized design consisting of 6 treatments and 3 replications, thus there were 18 treatment units. The parameters observed were daily mortality, percentage of larvae stop feeding, larvae transform into rabbits, lethal concentration 50%. Research results showed that the effective concentration was 20% and the increase in concentration did not affect larval mortality.