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Jatropha Curcas is getting significance commercially as the demand of fossil fuels increases significantly and also 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 economical compared to other fuels. Recently, Jatropha is facing some problem with insects and diseases. The bugs are categorized into two varieties: Pest that impact young plants and Pest that impact grown plants.

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

Agrotis ipsilon: It is commonly referred to as Cut worm. This pest impacts the seedlings and young Jatropha 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 entirely.

Control: This pest can be controlled by picking 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 raw materials present in the soil and after that concerns the root. The larva attack may kill the entire plant.

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

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

Control: Insecticides are used to control the insects.

Grasshopper: This is typical insect found in several plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The insect often attacks the young plant.

Control: The insecticides used 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 commonly seen in Indonesia. The stem attacked by this insect generally fall down. The presence can be determined by the larva penetration hole at the stem.

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

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

Leaf Caterpillar: This insect can consume all the leaves of the plant simply put period. The quality and yield of the seeds get minimized due to the heavy attack.

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

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when allowed to contact with skin as it produces particular chemical compound. Initially the bug crowded in the leaf and after that spread out all over the plant when it grows older.

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

Leaf Hopper: This insect is found mostly in tropical and subtropical regions. The insect 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 managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite likewise assaults the leaf and makes the entire plant weak. The insect existence can be determined when the leaf become yellowish, shrinks, reddens and drop. The insect can likewise be spread out through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a severe bug which assaults the plant during bloom period so the crop yield completely drops. This insect is seen around the tropical area.

The toxic enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The pests commonly happens attacks the plant in flowering 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 attacked seeds are recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.