UJI PESTISIDA NABATI TERHADAP HAMA DAN PENYAKIT TANAMAN
Abstract: The Loss of crop
productivity can reach 30-35% if not use pesticide. The other hand, to use of
pesticides can be caused environmental problems and human healthy. This
research aims to develop biopesticides for pests and plant diseases. It was
conducted at the PEM laboratory UIN Suska Riau and on land, from July to
November 2015. The sourches were extracts from Andropogon nardus, Annona
muricata leaves, Ageratum conyzoides, Piper aduncun fructus, Nicotiana tabacum
leaves, Tinospora crispa, Azadirachta indica leaves, Allium sativum and Piper
betle leaves. Each the source was macerated in alcohol 50% for 24 hours and
then distilled at a temperature of 60 °C until all the alcohol evaporates. The
experimental Design was complete random design with 7 treatments (control, 20%,
40%, 60%, 80%, 100% and chemical pesticides as positif control) and 3
replicates. Parameters of the test biopesticides to disease performed in vitro
with measure the resistance zones and for mealybugs and Gryllus assimilis in
vivo with the pest mortality. Biopesticide test in vitro for the bacteria that
causes carrot root rot has not been able to kill microbes. The mortality rate
mealybugs begins before 1 hour observation at the treatment biopesticide
concentration of 80%, 100% and control positif.
Provision of different concentrations of biopesticides, does not the increased
mortality of Gryllus assimilis. This shows that the power to kill biopesticide
still well below chemical pesticides, but the pest is still alive no appetite
as antifeedant effect of the biopesticide. So biopesticide application does not
have to kill the target pest. Need
follow-up and development of this research and other pests.
Penulis: MOKHAMAD IRFAN
Kode Jurnal: jppertaniandd160762
