Jatropha Curcas is acquiring importance commercially as the need of nonrenewable fuel sources increases tremendously and likewise Jatropha is an environment-friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel substitute and it is likewise extremely cost-effective compared to other fuels. Recently, Jatropha is dealing with some problem with pests and diseases. The bugs are categorized into two ranges: Pest that affect young plants and Pest that affect developed plants.

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

Agrotis ipsilon: It is frequently referred to as Cut worm. This bug affects the seedlings and young jatropha curcas plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface area and this will diminished the plant totally.

Control: This bug can be controlled by picking the larva discovered around the plants or by blending the bran, sawdust with insecticides.

Scarabaeid Beetle: This pest damages the root of the young plant. Initially, the larva consumes the raw materials present in the soil and then comes to the root. The larva attack might eliminate the entire plant.

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

Army worm: Spodoptera litura presence can be determined by biting in the leaves. The serious infection might completely kill the plants.

Control: Insecticides are utilized to control the insects.

Grasshopper: This prevails bug found in a number of plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The bug 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 stem and it is widely seen in Indonesia. The stem attacked by this bug typically fall down. The presence can be determined by the larva penetration hole at the stem.

Control: The Insecticide normally used to manage 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 insect can consume all the leaves of the plant in brief duration. The quality and yield of the seeds get reduced due to the heavy attack.

Control: This can be controlled by selecting the old larvae around the surface area and getting rid of the attacked leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when permitted to call with skin as it produces particular chemical compound. Initially the insect crowded in the leaf and then spread out all over the plant when it ages.

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 bug is discovered primarily in tropical and subtropical areas. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the tip. Later, the entire leaf dry 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 presence can be determined when the leaf ended up being yellowish, shrinks, turns red and drop. The pest can likewise be spread through fallen leaves.

Control: Some preventive procedures can be simulated proper sanitation and burning the fallen leaves. Heavy attack can be treated 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 major bug which attacks the plant throughout blossom duration so the crop yield entirely falls down. This bug is seen around the tropical area.

The harmful enzyme in the plant diminishes the whole plant.

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

Tip borer caterpillar: The bugs frequently occurs attacks the plant in flowering season and this pest is seen extensively 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 assaulted seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.