Jatropha jatropha curcas is acquiring significance commercially as the demand of nonrenewable fuel sources increases enormously and likewise jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel replacement and it is also very cost-effective compared to other fuels. Recently, jatropha curcas is facing some problem with insects and illness. The pests are classified into 2 varieties: Pest that impact young plants and Pest that affect matured plants.

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

Agrotis ipsilon: It is typically understood as Cut worm. This insect affects 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 diminished the plant entirely.

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

Scarabaeid Beetle: This pest destroys 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 kill the entire plant.

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

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

Control: Insecticides are used to control the bugs.

Grasshopper: This is typical pest found in numerous plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The pest typically 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 harms the Jatropha stem and it is extensively seen in Indonesia. The stem attacked by this pest usually fall down. The existence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide normally used to control this bug is carbofuran.

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

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

Control: This can be controlled by choosing the old larvae around the surface area and throwing away the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning experience when permitted to call with skin as it produces specific chemical compound. Initially the bug crowded in the leaf and then 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 bug is discovered mainly in tropical and subtropical regions. 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 controlled by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite likewise assaults the leaf and makes the entire plant weak. The insect existence can be recognized when the leaf become yellowish, shrinks, turns red and drop. The bug can likewise be spread out through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a serious pest which assaults the plant throughout bloom period so the crop yield entirely falls down. This pest is seen around the tropical area.

The harmful enzyme in the plant diminishes the whole plant.

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

Tip borer caterpillar: The insects typically happens attacks the plant in blooming season and this bug is seen in tropical regions. The female insect laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant ideas.

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