pt-sinergi-oleo-nusantara

Jatropha Curcas is gaining value commercially as the need of fossil fuels increases greatly and likewise jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel replacement and it is likewise extremely cost-effective compared to other fuels. Recently, Jatropha is dealing with some trouble with bugs and diseases. The insects are classified into two ranges: Pest that impact young plants and Pest that affect grown plants.

Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.

Agrotis ipsilon: It is typically called Cut worm. This bug affects the seedlings and young jatropha curcas plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface and this will diminished the plant completely.

Control: This pest can be managed by picking the larva found around the plants or by blending the bran, sawdust with insecticides.

Scarabaeid Beetle: This bug ruins the root of the young plant. Initially, the larva consumes the raw materials present in the soil and after that concerns the root. The larva attack might eliminate the entire plant.

Control: The plant with excellent resistance power can overcome the bug. For heavy attack, insecticides with elements carbosulfan and carbofuran can be utilized to eliminate the insect.

Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The serious infection might completely kill the plants.

Control: Insecticides are used to control the pests.

Grasshopper: This is typical bug discovered in numerous plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The bug typically attacks the young plant.

Control: The insecticides utilized betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.

Pest observed in mature plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This insect harms the Jatropha stem and it is extensively seen in Indonesia. The stem attacked by this bug generally drop. The existence can be by the larva penetration hole at the stem.

Control: The Insecticide typically utilized to control this bug is carbofuran.

Pest of leaf: The common insects observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.

Leaf Caterpillar: This insect can eat all the leaves of the plant in other words period. The quality and yield of the seeds get reduced due to the heavy attack.

Control: This can be managed by selecting the old larvae around the surface and discarding the attacked leaves.

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning experience when enabled to contact with skin as it produces particular chemical compound. Initially the pest crowded in the leaf and then spread all over the plant when it ages.

Control: Manually, the insect can be eliminated just by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.

Leaf Hopper: This pest is found primarily in tropical and subtropical regions. The bug targets the leaf and draws all the nutrients of the leaf and gets curls at the tip. Later, the entire leaf dry and die.

Control: The heavy attack can be managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite also assaults the leaf and makes the entire plant weak. The pest presence can be recognized when the leaf become yellowish, diminishes, reddens and fall down. The insect can also be spread out through fallen leaves.

Control: Some preventive measures can be simulated correct sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.

Some dreadful bug which assaults flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a major bug which assaults the plant during blossom duration so the crop yield completely falls down. This pest is seen around the tropical region.

The poisonous enzyme in the plant shrinks the entire plant.

Control: Insecticides advised for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.

Tip borer caterpillar: The pests typically happens attacks the plant in blooming season and this insect is seen commonly in tropical regions. The female pest laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant pointers.

Control: Manually, the attacked seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.