EFFECT OF CHERRY LEAF (Muntinga calabora) BIOINSECTICIDES EXTRACT TOWARDS MORTALITY OF WORM SOIL (Agrotis ipsilon) AND ARMYWORM (Spodoptera exiqua) ON PLANT LEEK (Allium fistolum)Abstract views: 268 , downloads: 1094
Leek plant (Allium fistulosum) that grown at Village Treceh Sajen Mojokerto District Pacet
often suffer from some loss that caused by the attacks from pests such as worm soil (Agrotis
ipsilon) and armyworm (Spodoptera exiqua). The use of synthetic insecticides is very dangerous,
because the residue will affect the health of consumers. Cherry plant (Muntinga calabura) contains
active substances such as tannins, saponins and flavonoids that can be used as bioinsecticides.
This study aims to determine whether there is an effect of cherry leaf bioinsecticides
extract towards mortality of worm soil and armyworm in a in vitro manner, and to observe the
growth of leek plant at harvest scallion age 2 months. The study design used is a Complete
Randomized Design, with 4 treatments using cherry leaf extract (0%, 2.5%, 5% and 7.5%), and
given 6 replications. Samples of worm soil and armyworm caterpillars each are 120 which its
mortality will be observed for 24 hours. Leek plant sample are 60 plants. The results of data
analysis showed a 24-hour LC50 value for worm soil is 4.240% and the 24-hour LC50 values for
armyworm is 3,434%. These results indicate that the cherry leaf extract is more effective to
annihilate armyworm than it is to annihilate worm soil.
To observe the effect of cherry leaf bioinsecticides treatment extract towards the growth of
leek plant leaves were harvested 2 months of age. Results of test F (0.024) indicates that there is a
significant effect of cherry leaf extract towards the growth of leek plants. The results of the LSD
analysis of these data showed that the P3 treatment with a concentration of 7.5% is the one that
produces the best growth of the plant.