Jatropha Curcas is acquiring value commercially as the need of fossil fuels increases greatly and likewise jatropha curcas is an environmentally friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel alternative and it is also really affordable compared to other fuels. Recently, jatropha curcas is facing some trouble with pests and diseases. The bugs are categorized into two varieties: Pest that impact young plants and Pest that impact grown plants.

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

Agrotis ipsilon: It is commonly referred to as Cut worm. This bug 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 shrunk the plant completely.

Control: This insect can be controlled by selecting the larva found around the plants or by blending the bran, sawdust with insecticides.

Scarabaeid Beetle: This bug ruins the root of the young plant. Initially, the larva takes in the raw materials present in the soil and then comes to the root. The larva attack might eliminate the entire plant.

Control: The plant with good resistance power can get rid of the insect. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to kill the insect.

Army worm: Spodoptera litura presence can be determined by biting in the leaves. The serious infection could entirely kill the plants.

Control: Insecticides are used to manage the insects.

Grasshopper: This is common insect discovered in a number of plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The bug typically assaults 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 curcas stem and it is widely seen in Indonesia. The stem assaulted by this bug usually drop. The existence can be determined by the larva penetration hole at the stem.

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

Pest of leaf: The common bugs 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 duration. The quality and yield of the seeds get reduced due to the heavy attack.

Control: This can be controlled by choosing the old larvae around the surface area and discarding 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 certain chemical substance. Initially the insect crowded in the leaf and then spread all over the plant when it ages.

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

Leaf Hopper: This insect is discovered mainly in tropical and subtropical areas. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the suggestion. 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 also attacks the leaf and makes the entire plant weak. The bug existence can be identified when the leaf become yellow-colored, diminishes, reddens and fall down. The pest can also be spread out through fallen leaves.

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

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a major insect which assaults the plant throughout blossom duration so the crop yield entirely drops. This insect is seen around the tropical region.

The harmful enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The pests typically happens attacks the plant in blooming season and this insect is seen commonly 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 suggestions.

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