Jatropha Curcas is acquiring significance commercially as the demand of nonrenewable fuel sources increases enormously and likewise Jatropha is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel substitute and it is also very affordable compared to other fuels. Recently, Jatropha is dealing with some problem with pests and diseases. The pests are classified into 2 ranges: Pest that impact young plants and Pest that impact developed plants.

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

Agrotis ipsilon: It is frequently referred to as Cut worm. This pest 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 completely.

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

Scarabaeid Beetle: This bug 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 kill the entire plant.

Control: The plant with good resistance power can get rid of the pest. For heavy attack, insecticides with components carbosulfan and carbofuran can be utilized to kill the pest.

Army worm: Spodoptera litura presence can be identified by biting in the leaves. The severe infection might entirely eliminate the plants.

Control: Insecticides are utilized to manage the insects.

Grasshopper: This is common insect discovered in numerous plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The bug often attacks the young plant.

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

Pest observed in fully grown plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This insect harms the Jatropha stem and it is extensively seen in Indonesia. The stem attacked by this bug normally fall down. The presence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide normally used to manage this pest 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 eat all the leaves of the plant in other words period. 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 area and getting rid of the assaulted leaves.

Needle Caterpillar: This caterpillar is with spinal columns and produces a burning sensation when enabled to contact with skin as it produces certain chemical compound. Initially the bug crowded in the leaf and then spread out all over the plant when it grows older.

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

Leaf Hopper: This bug is discovered primarily in tropical and subtropical regions. The pest targets the leaf and draws all the nutrients of the leaf and gets curls at the idea. 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 whole plant weak. The pest presence can be identified when the leaf ended up being yellow-colored, diminishes, reddens and fall down. The pest can also be spread out through fallen leaves.

Control: Some preventive procedures can be simulated correct sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a major insect which attacks the plant throughout bloom duration so the crop yield completely drops. This insect is seen around the tropical region.

The toxic enzyme in the plant shrinks the whole plant.

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

Tip borer caterpillar: The pests commonly happens attacks the plant in blooming season and this pest is seen widely 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 ideas.

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