Jatropha Curcas is getting importance commercially as the need of nonrenewable fuel sources increases tremendously and likewise Jatropha is an eco-friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel substitute and it is likewise extremely cost-effective compared to other fuels. Recently, Jatropha is dealing with some problem with pests and illness. The bugs are categorized into two ranges: Pest that affect young plants and Pest that impact matured 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 plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface and this will shrunk the plant completely.

Control: This insect can be managed by choosing the larva found around the plants or by mixing the bran, sawdust with insecticides.

Scarabaeid Beetle: This pest damages the root of the young plant. Initially, the larva consumes the organic matters present in the soil and then concerns the root. The larva attack might kill the entire plant.

Control: The plant with excellent resistance power can conquer the pest. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to eliminate the pest.

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

Control: Insecticides are used to control the pests.

Grasshopper: This prevails pest discovered in several plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The insect frequently assaults the young plant.

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

Pest observed in fully grown plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

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

Control: The Insecticide generally utilized to manage this bug is carbofuran.

Pest of leaf: The typical insects 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 short period. The quality and yield of the seeds get lowered due to the heavy attack.

Control: This can be managed by choosing the old larvae around the surface and getting rid of the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning experience when allowed to contact with skin as it produces particular chemical substance. Initially the insect crowded in the leaf and then spread out all over the plant when it grows older.

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

Leaf Hopper: This bug is discovered mostly in tropical and subtropical areas. The pest targets the leaf and draws all the nutrients of the leaf and gets curls at the suggestion. Later, the entire leaf dry and pass away.

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

Mite: Mite likewise assaults the leaf and makes the entire plant weak. The bug presence can be recognized when the leaf become yellowish, diminishes, reddens and drop. The insect can likewise 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 insect which assaults 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 throughout blossom period so the crop yield entirely falls down. This bug is seen around the tropical region.

The hazardous enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The pests typically happens attacks the plant in blooming season and this bug is seen extensively in tropical regions. The female bug 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 recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.