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Jatropha Curcas is acquiring significance commercially as the need of fossil fuels increases greatly and likewise jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel alternative and it is likewise really cost-effective compared to other fuels. Recently, jatropha curcas is dealing with some difficulty with insects and illness. The pests are classified into two ranges: Pest that impact young plants and Pest that affect developed plants.

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

Agrotis ipsilon: It is commonly referred to as Cut worm. This insect impacts 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 completely.

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

Scarabaeid Beetle: This bug destroys the root of the young plant. Initially, the larva takes in the raw materials present in the soil and after that pertains to the root. The larva attack might kill the whole plant.

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

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

Control: Insecticides are utilized to manage the pests.

Grasshopper: This prevails pest discovered in several plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The bug often assaults the young plant.

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

Pest observed in mature plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This bug harms the Jatropha stem and it is widely seen in Indonesia. The stem assaulted by this bug generally drop. The existence can be identified by the larva penetration hole at the stem.

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

Pest of leaf: The common insects 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 lowered due to the heavy attack.

Control: This can be managed by choosing the old larvae around the surface and throwing away the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when enabled to exposure to skin as it produces specific chemical compound. Initially the insect crowded in the leaf and after that spread out all over the plant when it grows older.

Control: Manually, the bug can be killed only by 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 pest targets the leaf and sucks all the nutrients of the leaf and gets curls at the pointer. Later, the entire leaf dry and pass away.

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

Mite: Mite likewise attacks the leaf and makes the entire plant weak. The bug presence can be identified when the leaf ended up being yellowish, shrinks, reddens and drop. The pest can also be spread out through fallen leaves.

Control: Some preventive steps can be done like correct sanitation and burning the fallen leaves. Heavy attack can be dealt with 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 major pest which assaults the plant during blossom period so the crop yield entirely falls down. This pest is seen around the tropical area.

The toxic enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The bugs commonly takes place attacks the plant in blooming season and this pest is seen widely in tropical regions. The female insect 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 flowering season.