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Jatropha Curcas is getting significance commercially as the need of nonrenewable fuel sources increases greatly and likewise Jatropha is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel alternative and it is likewise extremely cost-effective compared to other fuels. Recently, Jatropha is facing some difficulty with bugs and diseases. The pests are classified into two varieties: Pest that impact young plants and Pest that affect matured plants.

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

Agrotis ipsilon: It is typically called Cut worm. This insect affects the seedlings and young Jatropha plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface and this will diminished the plant completely.

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

Scarabaeid Beetle: This bug ruins the root of the young plant. Initially, the larva consumes the raw materials present in the soil and after that pertains to the root. The larva attack may eliminate the whole plant.

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

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

Control: Insecticides are utilized to control the insects.

Grasshopper: This prevails bug discovered in a number of plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The pest frequently attacks 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 pest damages the Jatropha stem and it is widely seen in Indonesia. The stem attacked by this bug usually fall down. The existence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide typically used to manage this insect 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 simply put period. The quality and yield of the seeds get minimized due to the heavy attack.

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

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when permitted to call with skin as it produces particular chemical substance. Initially the bug crowded in the leaf and then spread all over the plant when it ages.

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 found mostly in tropical and subtropical areas. The insect targets the leaf and draws all the nutrients of the leaf and gets curls at the pointer. Later, the entire leaf dry and die.

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

Mite: Mite also attacks the leaf and makes the entire plant weak. The insect presence can be identified when the leaf become yellow-colored, diminishes, turns red and fall down. The insect can also be spread through fallen leaves.

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

Some terrible 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 duration so the totally falls down. This bug is seen around the tropical area.

The poisonous enzyme in the plant shrinks the whole plant.

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

Tip borer caterpillar: The pests commonly occurs attacks the plant in flowering season and this insect is seen widely in tropical areas. The female pest 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 advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.