Jatropha Curcas is acquiring significance 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 extremely economical compared to other fuels. Recently, jatropha curcas is dealing with some trouble with pests and illness. The pests are categorized into 2 ranges: Pest that impact young plants and Pest that affect matured plants.

Young plant pests: 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 impacted by the cutworm, the stem gets cut nearer to the soil surface and this will shrunk the plant entirely.

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 damages the root of the young plant. Initially, the larva consumes the raw materials present in the soil and then concerns the root. The larva attack might eliminate the entire 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 bug.

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

Control: Insecticides are used to control the insects.

Grasshopper: This is typical pest discovered in several plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The bug typically attacks the young plant.

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

Pest observed in fully grown plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This bug harms the jatropha curcas stem and it is extensively seen in Indonesia. The stem attacked by this bug usually drop. The existence can be identified by the larva penetration hole at the stem.

Control: The Insecticide generally used to control this bug is carbofuran.

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

Leaf Caterpillar: This bug can eat all the leaves of the plant in other words 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 getting rid of the attacked leaves.

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when enabled to contact with skin as it produces specific chemical substance. Initially the insect crowded in the leaf and after that spread out all over the plant when it ages.

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

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

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 bug existence can be determined when the leaf ended up being yellowish, shrinks, turns red and fall down. The pest can likewise be spread out through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

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

The hazardous enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The bugs typically occurs attacks the plant in flowering season and this insect is seen widely in tropical areas. 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 assaulted seeds are advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.