Jatropha jatropha curcas is getting value commercially as the demand of fossil fuels increases enormously and likewise jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel substitute and it is likewise very cost-effective compared to other fuels. Recently, Jatropha is facing some trouble with insects and illness. The bugs are categorized into two ranges: Pest that impact young plants and Pest that impact grown plants.

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

Agrotis ipsilon: It is frequently referred to as Cut worm. This insect impacts 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 insect can be managed by selecting the larva discovered around the plants or by blending the bran, sawdust with insecticides.

Scarabaeid Beetle: This insect destroys the root of the young plant. Initially, the larva consumes the raw materials present in the soil and then pertains to the root. The larva attack might eliminate the whole plant.

Control: The plant with good resistance power can get rid of the bug. For heavy attack, insecticides with components carbosulfan and carbofuran can be utilized to kill the pest.

Army worm: Spodoptera litura presence can be determined by biting in the leaves. The severe infection could entirely kill the plants.

Control: Insecticides are utilized to manage the insects.

Grasshopper: This prevails bug found in numerous plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The pest frequently assaults the young plant.

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

Pest observed in mature plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

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

Control: The Insecticide normally used to manage 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 pest can eat all the leaves of the plant simply put duration. The quality and yield of the seeds get decreased due to the heavy attack.

Control: This can be managed by selecting 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 feeling when allowed to exposure to skin as it produces specific chemical substance. Initially the bug crowded in the leaf and then spread out all over the plant when it grows older.

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

Leaf Hopper: This insect is found mainly in tropical and subtropical areas. The insect targets the leaf and sucks all the nutrients of the leaf and gets curls at the tip. Later, the entire leaf dry and pass away.

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

Mite: Mite likewise assaults the leaf and makes the entire plant weak. The pest existence can be recognized when the leaf ended up being yellowish, shrinks, turns red and fall down. The bug can also be spread out through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

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

The hazardous enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The bugs frequently happens attacks the plant in blooming season and this bug is seen extensively in tropical regions. The female insect laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant suggestions.

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