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Jatropha Curcas is acquiring importance commercially as the need of fossil fuels increases enormously and likewise Jatropha is an environment-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel alternative and it is likewise really cost-effective compared to other fuels. Recently, Jatropha is facing some trouble with bugs and illness. The bugs are categorized into two varieties: Pest that impact young plants and Pest that impact matured plants.

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

Agrotis ipsilon: It is commonly referred to as Cut worm. This insect impacts the seedlings and young Jatropha plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface area and this will shrunk the plant totally.

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

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

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

Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The extreme infection could totally eliminate the plants.

Control: Insecticides are used to manage the insects.

Grasshopper: This prevails bug found in several plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The insect frequently assaults the young plant.

Control: The insecticides used 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 curcas stem and it is commonly seen in Indonesia. The stem attacked by this bug generally drop. The existence can be identified by the larva penetration hole at the stem.

Control: The Insecticide typically 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 reduced due to the heavy attack.

Control: This can be controlled by selecting the old larvae around the surface area and tossing away the attacked leaves.

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

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

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

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

Mite: Mite likewise assaults the leaf and makes the entire plant weak. The pest existence can be determined when the leaf ended up being yellow-colored, shrinks, turns red and fall down. The bug can also be spread out through fallen leaves.

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

Some dreadful pest 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 during blossom duration so the crop yield completely drops. This insect is seen around the tropical area.

The toxic 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 pests typically takes place the plant in blooming season and this bug is seen widely in tropical areas. The female insect laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant suggestions.

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