Jatropha Curcas is getting significance commercially as the demand of nonrenewable fuel sources increases tremendously and also Jatropha is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel replacement and it is also very cost-effective compared to other fuels. Recently, jatropha curcas is dealing with some difficulty with bugs and illness. The bugs are classified into two varieties: Pest that impact young plants and Pest that impact matured plants.

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

Agrotis ipsilon: It is commonly called Cut worm. This pest impacts 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 diminished the plant totally.

Control: This pest can be managed by choosing 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 takes in the natural matters present in the soil and after that comes to the root. The larva attack may eliminate the entire plant.

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

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

Control: Insecticides are used to manage the insects.

Grasshopper: This is typical insect discovered 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 fipronil.

Pest observed in fully grown plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This pest damages the Jatropha stem and it is widely seen in Indonesia. The stem assaulted by this insect usually fall down. The presence can be recognized by the larva penetration hole at the stem.

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

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

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

Control: This can be controlled by picking 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 sensation when enabled to call with skin as it produces specific chemical substance. Initially the pest crowded in the leaf and then 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 bug is found mainly 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 managed by using insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite likewise attacks the leaf and makes the entire plant weak. The insect existence can be identified when the leaf become yellowish, shrinks, turns red and fall down. The pest can likewise be spread through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a severe pest which assaults the plant throughout bloom duration so the crop yield entirely drops. This insect is seen around the tropical region.

The hazardous 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 typically takes place attacks the plant in blooming season and this insect is seen extensively 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 tips.

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