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Jatropha Curcas is getting significance commercially as the need of nonrenewable fuel sources increases enormously and likewise jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is considered to be an excellent fuel alternative and it is likewise very affordable compared to other fuels. Recently, jatropha curcas is dealing with some trouble with bugs and diseases. The bugs are categorized into two ranges: Pest that affect young plants and Pest that affect developed 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 impacted by the cutworm, the stem gets cut nearer to the soil surface area and this will shrunk the plant completely.

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

Scarabaeid Beetle: This pest ruins the root of the young plant. Initially, the larva takes in the raw materials present in the soil and after that pertains to the root. The larva attack might eliminate the entire plant.

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

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

Control: Insecticides are used to control the pests.

Grasshopper: This is typical insect found in numerous plants. Valanga nigricornis and Locusta migratoria extensively 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 pest damages the jatropha curcas stem and it is commonly seen in Indonesia. The stem attacked by this pest typically 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 pests 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 duration. The quality and yield of the seeds get decreased due to the heavy attack.

Control: This can be controlled by choosing 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 permitted to exposure to skin as it produces specific chemical substance. Initially the insect crowded in the leaf and after that spread out all over the plant when it gets older.

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

Leaf Hopper: This insect is found mostly in tropical and subtropical regions. The pest targets the leaf and draws all the nutrients of the leaf and gets curls at the tip. Later, the entire leaf dry and pass away.

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

Mite: Mite also assaults the leaf and makes the whole plant weak. The pest presence can be recognized when the leaf become yellow-colored, diminishes, turns red and drop. The insect can also be spread out through fallen leaves.

Control: Some preventive measures 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 serious bug which assaults the plant during bloom period so the crop yield completely falls down. This pest is seen around the tropical region.

The toxic enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The insects typically occurs attacks the plant in blooming season and this insect is seen widely 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 tips.

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