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Jatropha Curcas is gaining significance commercially as the demand of fossil fuels increases enormously and likewise Jatropha is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel replacement and it is also really affordable compared to other fuels. Recently, Jatropha is dealing with some trouble with pests and illness. The bugs are classified into 2 ranges: Pest that affect young plants and Pest that impact grown plants.

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

Agrotis ipsilon: It is commonly called Cut worm. This insect affects the seedlings and young jatropha curcas plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface area and this will shrunk the plant totally.

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

Scarabaeid Beetle: This insect ruins the root of the young plant. Initially, the larva consumes the natural matters present in the soil and then concerns the root. The larva attack might eliminate the entire plant.

Control: The plant with great resistance power can conquer the bug. For heavy attack, insecticides with parts carbosulfan and carbofuran can be utilized to eliminate the bug.

Army worm: Spodoptera litura existence can be identified by biting in the leaves. The severe infection might completely eliminate the plants.

Control: Insecticides are used to manage the insects.

Grasshopper: This prevails pest discovered in a number of plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The insect frequently 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 bug damages the jatropha curcas stem and it is widely seen in Indonesia. The stem attacked by this pest usually fall down. The presence can be identified by the larva penetration hole at the stem.

Control: The Insecticide usually used to manage this insect is carbofuran.

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

Leaf Caterpillar: This pest can consume all the leaves of the plant in short period. The quality and yield of the seeds get reduced 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 spines and produces a burning feeling when permitted to contact with skin as it produces specific chemical substance. Initially the insect crowded in the leaf and then spread all over the plant when it ages.

Control: Manually, the bug 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 insect 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 managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite also attacks the leaf and makes the whole plant weak. The bug presence can be recognized when the leaf become yellowish, shrinks, turns red and drop. The insect can likewise be spread out through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

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

The toxic enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The insects frequently happens attacks the plant in blooming season and this pest 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 suggestions.

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