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

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

Agrotis ipsilon: It is commonly called 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 and this will diminished the plant entirely.

Control: This bug can be controlled by the larva found 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 raw materials present in the soil and then concerns the root. The larva attack might eliminate the entire plant.

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

Army worm: Spodoptera litura presence can be identified by biting in the leaves. The extreme infection might completely eliminate the plants.

Control: Insecticides are utilized to control the pests.

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

Control: The Insecticide typically used to control this pest is carbofuran.

Pest of leaf: The common insects 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 other words period. The quality and yield of the seeds get reduced due to the heavy attack.

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

Needle Caterpillar: This caterpillar is covered with spines and produces a burning sensation when enabled to exposure to skin as it produces particular chemical compound. Initially the bug crowded in the leaf and then spread all over the plant when it gets older.

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

Leaf Hopper: This bug is discovered primarily in tropical and subtropical areas. The insect 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 managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite likewise attacks the leaf and makes the entire plant weak. The pest presence can be determined when the leaf become yellowish, diminishes, turns red and fall down. The insect can also be spread through fallen leaves.

Control: Some preventive measures can be done like correct sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.

Some terrible pest which assaults flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a severe bug which attacks the plant throughout blossom period so the crop yield completely drops. This bug is seen around the tropical region.

The hazardous enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The insects typically takes place attacks the plant in flowering season and this bug is seen widely in tropical regions. 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 attacked seeds are recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.