Jatropha Curcas is gaining significance commercially as the demand of fossil fuels increases significantly and also Jatropha is an environment-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel alternative and it is likewise extremely economical compared to other fuels. Recently, Jatropha is facing some difficulty with pests and diseases. The pests are classified into two ranges: Pest that impact young plants and Pest that affect grown plants.

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

Agrotis ipsilon: It is typically referred to as Cut worm. This insect impacts the seedlings and young Jatropha plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface area and this will diminished the plant totally.

Control: This pest can be managed by choosing the larva found around the plants or by mixing 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 pertains to the root. The larva attack might eliminate the entire plant.

Control: The plant with great resistance power can overcome the insect. For heavy attack, insecticides with components carbosulfan and carbofuran can be used to kill the insect.

Army worm: Spodoptera litura existence can be determined by biting in the leaves. The extreme infection could totally eliminate the plants.

Control: Insecticides are used to control the pests.

Grasshopper: This prevails bug found in several plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The insect typically assaults the young plant.

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

Pest observed in mature plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This insect harms the jatropha curcas stem and it is commonly seen in Indonesia. The stem assaulted by this insect typically fall down. The presence can be identified by the larva penetration hole at the stem.

Control: The Insecticide normally used to control this pest is carbofuran.

Pest of leaf: The typical bugs 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 other words duration. The quality and yield of the seeds get decreased due to the heavy attack.

Control: This can be controlled by picking the old larvae around the surface and discarding the attacked leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when enabled to exposure to skin as it produces certain chemical substance. Initially the bug crowded in the leaf and then spread all over the plant when it ages.

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

Leaf Hopper: This pest is found mostly in tropical and subtropical regions. The pest targets the leaf and sucks all the nutrients of the leaf and gets curls at the pointer. Later, the whole leaf dry and die.

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

Mite: Mite also assaults the leaf and makes the whole plant weak. The insect presence can be recognized when the leaf become yellowish, shrinks, turns red and drop. The bug can likewise be spread out through fallen leaves.

Control: Some preventive procedures can be simulated appropriate sanitation and burning the fallen leaves. Heavy attack can be dealt with 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 major pest which assaults the plant throughout blossom period so the crop yield completely drops. This pest is seen around the tropical area.

The harmful enzyme in the plant diminishes the whole plant.

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

Tip borer caterpillar: The bugs typically happens attacks the plant in flowering season and this bug is seen extensively in tropical regions. The female pest laid the eggs on the tender part of the plant and the young the young fruits and plant pointers.

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