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Jatropha Curcas is acquiring value commercially as the need 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 exceptional fuel alternative and it is also really economical compared to other fuels. Recently, Jatropha is facing some trouble with bugs and diseases. The bugs are classified into two varieties: Pest that affect young plants and Pest that affect grown plants.

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

Agrotis ipsilon: It is frequently referred to as Cut worm. This pest 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 and this will shrunk the plant totally.

Control: This pest can be controlled by choosing the larva discovered 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 consumes the natural matters present in the soil and after that comes to the root. The larva attack might eliminate the entire plant.

Control: The plant with good resistance power can conquer the pest. For heavy attack, insecticides with parts carbosulfan and carbofuran can be to kill the pest.

Army worm: Spodoptera litura existence can be determined by biting in the leaves. The extreme infection might totally eliminate the plants.

Control: Insecticides are utilized to manage the pests.

Grasshopper: This is typical insect found in a number of plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The bug frequently attacks the young plant.

Control: The insecticides utilized 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 curcas stem and it is widely seen in Indonesia. The stem assaulted by this insect generally fall down. The presence can be identified by the larva penetration hole at the stem.

Control: The Insecticide typically used to manage this bug is carbofuran.

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

Leaf Caterpillar: This insect can consume all the leaves of the plant in short duration. The quality and yield of the seeds get decreased due to the heavy attack.

Control: This can be managed by picking the old larvae around the surface and discarding the attacked leaves.

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning feeling when allowed to call with skin as it produces particular chemical compound. Initially the bug crowded in the leaf and after that spread all over the plant when it ages.

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 insect is discovered mainly in tropical and subtropical regions. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the idea. Later, the whole leaf dry and pass away.

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

Mite: Mite also assaults the leaf and makes the entire plant weak. The bug presence can be identified when the leaf ended up being yellow-colored, diminishes, reddens and drop. The insect 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 treated 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 bug which attacks the plant throughout blossom period so the crop yield totally drops. This insect is seen around the tropical region.

The toxic enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The pests frequently takes place attacks the plant in blooming season and this bug is seen commonly in tropical areas. The female bug 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 suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.