pt-sinergi-oleo-nusantara

Jatropha Curcas is gaining importance commercially as the demand of nonrenewable fuel sources increases tremendously and also Jatropha is an eco-friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel substitute and it is likewise very affordable compared to other fuels. Recently, jatropha curcas is dealing with some difficulty with pests and illness. The bugs are classified into 2 varieties: Pest that impact young plants and Pest that affect grown plants.

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

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

Control: This bug can be managed by choosing the larva discovered around the plants or by mixing 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 pertains to the root. The larva attack may kill the entire plant.

Control: The plant with good resistance power can overcome the bug. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to kill the pest.

Army worm: Spodoptera litura presence can be identified by biting in the leaves. The serious infection could completely eliminate the plants.

Control: Insecticides are used to control the bugs.

Grasshopper: This prevails pest discovered in numerous plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The insect 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 widely seen in Indonesia. The stem attacked by this insect generally drop. The presence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide typically utilized to manage this pest is carbofuran.

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

Leaf Caterpillar: This bug can consume all the leaves of the plant in other words duration. The quality and yield of the seeds get minimized due to the heavy attack.

Control: This can be controlled by choosing the old larvae around the surface area and tossing away the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning experience when allowed to call with skin as it produces specific chemical compound. Initially the pest crowded in the leaf and after that spread out all over the plant when it ages.

Control: Manually, the insect can be killed only by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.

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

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

Mite: Mite also attacks the leaf and makes the entire plant weak. The pest existence can be determined when the leaf become yellowish, diminishes, turns red and drop. The pest can also be spread out through fallen leaves.

Control: Some preventive steps can be done like appropriate sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a major pest which attacks the plant throughout bloom period so the crop yield completely falls down. This insect is seen around the tropical region.

The in the plant diminishes the whole plant.

Control: Insecticides recommended for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.

Tip borer caterpillar: The insects frequently takes place attacks the plant in blooming season and this bug 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 advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.