Jatropha Curcas is acquiring importance commercially as the need of fossil fuels increases tremendously and also jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel substitute and it is likewise very cost-effective compared to other fuels. Recently, jatropha curcas is dealing with some difficulty with pests and illness. The pests are classified into two ranges: Pest that affect young plants and Pest that affect grown plants.

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

Agrotis ipsilon: It is commonly referred to as Cut worm. This bug 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 area and this will diminished the plant entirely.

Control: This pest can be controlled 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 takes in the natural matters present in the soil and then comes to the root. The larva attack may kill the entire plant.

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

Army worm: Spodoptera litura existence can be recognized by biting in the leaves. The serious infection might totally kill the plants.

Control: Insecticides are utilized to manage the bugs.

Grasshopper: This prevails bug discovered in a number of plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The bug 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 bug harms the Jatropha stem and it is extensively seen in Indonesia. The stem attacked by this pest generally drop. The presence can be determined by the larva penetration hole at the stem.

Control: The Insecticide usually used to manage this insect is carbofuran.

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

Leaf Caterpillar: This pest can consume all the leaves of the plant in other words period. The quality and yield of the seeds get decreased due to the heavy attack.

Control: This can be managed by choosing 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 enabled to call with skin as it produces particular chemical compound. Initially the pest crowded in the leaf and then spread 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 controlled by spraying organophosphate insecticides.

Leaf Hopper: This insect is discovered 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 controlled by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite also attacks the leaf and makes the whole plant weak. The insect existence can be determined when the leaf become yellowish, diminishes, reddens and fall down. The insect can also be spread out through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a severe insect which assaults the plant throughout so the crop yield completely falls down. This pest is seen around the tropical region.

The hazardous enzyme in the plant diminishes the whole plant.

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

Tip borer caterpillar: The insects commonly takes place attacks the plant in blooming season and this pest 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 pointers.

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