Jatropha Curcas is acquiring significance commercially as the demand of fossil fuels increases significantly and also jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel alternative and it is likewise very affordable compared to other fuels. Recently, Jatropha is facing some problem with bugs and illness. The bugs are into two ranges: 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 understood as 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 area and this will shrunk the plant totally.

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

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

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

Control: Insecticides are used to manage the pests.

Grasshopper: This is typical pest found in several plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The insect often assaults 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 damages the jatropha curcas stem and it is extensively seen in Indonesia. The stem attacked by this insect usually fall down. The existence can be determined by the larva penetration hole at the stem.

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

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

Leaf Caterpillar: This insect can eat all the leaves of the plant in other words duration. The quality and yield of the seeds get lowered due to the heavy attack.

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

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning experience when allowed to contact with skin as it produces specific chemical substance. Initially the pest crowded in the leaf and then spread all over the plant when it gets older.

Control: Manually, the bug can be eliminated only 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 areas. The insect targets the leaf and draws all the nutrients of the leaf and gets curls at the suggestion. Later, the whole leaf dry and die.

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

Mite: Mite likewise assaults the leaf and makes the whole plant weak. The bug existence can be identified when the leaf become yellow-colored, shrinks, turns red and fall down. The insect can also be spread out through fallen leaves.

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

Some dreadful bug which attacks flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

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

The toxic enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The pests frequently happens attacks the plant in blooming season and this pest 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 ideas.

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