Jatropha Curcas is acquiring importance commercially as the demand of nonrenewable fuel sources increases tremendously and also jatropha curcas is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel alternative and it is likewise very economical compared to other fuels. Recently, jatropha curcas is facing some trouble with pests and diseases. The insects are categorized into 2 ranges: Pest that affect young plants and Pest that impact grown plants.

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

Agrotis ipsilon: It is frequently referred to as Cut worm. This insect impacts 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 entirely.

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

Scarabaeid Beetle: This pest damages the root of the young plant. Initially, the larva consumes the natural matters present in the soil and then concerns the root. The larva attack might kill the entire plant.

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

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

Control: Insecticides are utilized to manage the pests.

Grasshopper: This is common insect found in several plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The insect typically attacks 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 insect harms the Jatropha stem and it is commonly seen in Indonesia. The stem attacked by this bug usually drop. The presence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide usually utilized 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 eat all the leaves of the plant simply put period. The quality and yield of the seeds get minimized due to the heavy attack.

Control: This can be managed by picking the old larvae around the surface area and getting rid of the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning sensation when permitted to call with skin as it produces certain chemical substance. Initially the pest crowded in the leaf and after that spread all over the plant when it gets older.

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

Leaf Hopper: This bug is found mainly in tropical and subtropical areas. The bug targets the leaf and draws 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 also attacks the leaf and makes the whole plant weak. The pest existence can be recognized when the leaf become yellow-colored, shrinks, reddens and drop. The insect can also be spread 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 awful bug which assaults flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a serious bug which attacks the plant during blossom period so the crop yield completely drops. This insect is seen around the tropical area.

The poisonous enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The insects frequently occurs attacks the plant in flowering season and this insect 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 ideas.

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