Jatropha Curcas is gaining importance commercially as the need of fossil fuels increases greatly and also jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel replacement and it is also really economical compared to other fuels. Recently, Jatropha is facing some difficulty with bugs and illness. The insects are classified into two varieties: Pest that affect young plants and Pest that impact developed plants.

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

Agrotis ipsilon: It is frequently known as Cut worm. This pest impacts the seedlings and young jatropha curcas 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 completely.

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

Scarabaeid Beetle: This pest damages 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 may kill the entire plant.

Control: The plant with great resistance power can conquer the pest. For heavy attack, insecticides with parts carbosulfan and carbofuran can be utilized to eliminate the insect.

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

Control: Insecticides are utilized to control the pests.

Grasshopper: This prevails bug found in several plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The insect 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 bug harms the Jatropha stem and it is extensively seen in Indonesia. The stem assaulted by this insect usually drop. The existence can be determined by the larva penetration hole at the stem.

Control: The Insecticide typically used to manage this bug is carbofuran.

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

Leaf Caterpillar: This bug can eat all the leaves of the plant simply put period. The quality and yield of the seeds get lowered due to the heavy attack.

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

Needle Caterpillar: This caterpillar is with spines and produces a burning sensation when permitted to contact with skin as it produces particular chemical compound. Initially the pest crowded in the leaf and then spread all over the plant when it ages.

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 pest is found mainly in tropical and subtropical regions. The insect targets the leaf and draws all the nutrients of the leaf and gets curls at the suggestion. Later, the entire leaf dry and die.

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

Mite: Mite likewise attacks the leaf and makes the entire plant weak. The pest existence can be identified when the leaf become yellow-colored, shrinks, reddens and drop. The insect can likewise be spread through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a severe insect which attacks the plant throughout bloom duration so the crop yield totally falls down. This bug is seen around the tropical region.

The toxic enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The pests frequently happens attacks the plant in flowering season and this insect is seen extensively 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 suggestions.

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