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Jatropha Curcas is getting importance commercially as the need of fossil fuels increases enormously and likewise jatropha curcas is an environmentally friendly energy plantation. Plantation of this plant is considered to be an outstanding fuel alternative and it is likewise very affordable compared to other fuels. Recently, jatropha curcas is facing some problem with pests and illness. The pests are categorized into 2 varieties: Pest that affect young plants and Pest that affect matured plants.

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

Agrotis ipsilon: It is commonly understood 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 diminished the plant completely.

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

Scarabaeid Beetle: This insect ruins the root of the young plant. Initially, the larva takes in the organic matters present in the soil and after that comes to the root. The larva attack may eliminate the entire plant.

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

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

Control: Insecticides are utilized to manage the pests.

Grasshopper: This is typical bug found in a number of plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The bug typically assaults the young plant.

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

in mature 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 assaulted by this insect typically fall down. The presence can be determined by the larva penetration hole at the stem.

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

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

Leaf Caterpillar: This insect can eat all the leaves of the plant simply put period. The quality and yield of the seeds get decreased due to the heavy attack.

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

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

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

Leaf Hopper: This pest is found primarily in tropical and subtropical regions. The pest targets the leaf and sucks all the nutrients of the leaf and gets curls at the tip. Later, the whole leaf dry and die.

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

Mite: Mite also attacks the leaf and makes the entire plant weak. The bug existence can be identified when the leaf become yellow-colored, diminishes, turns red and fall down. The insect can also be spread out through fallen leaves.

Control: Some preventive measures can be simulated appropriate 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 severe pest which assaults the plant throughout bloom duration so the crop yield totally falls down. This insect is seen around the tropical region.

The poisonous enzyme in the plant diminishes the entire plant.

Control: Insecticides advised for this bug 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 areas. The female pest laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant tips.

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