Jatropha Curcas is gaining value commercially as the need of nonrenewable fuel sources increases tremendously and also Jatropha is an environment-friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel replacement and it is also extremely affordable compared to other fuels. Recently, jatropha curcas is facing some trouble with pests and diseases. The pests are classified into 2 varieties: Pest that affect young plants and Pest that affect developed plants.

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

Agrotis ipsilon: It is frequently known as Cut worm. This insect 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 shrunk the plant entirely.

Control: This pest 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 after that pertains to the root. The larva attack may eliminate the entire plant.

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

Army worm: Spodoptera litura presence can be determined by biting in the leaves. The severe infection might totally kill the plants.

Control: Insecticides are used to manage the pests.

Grasshopper: This is typical insect discovered in numerous plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The bug often 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 damages the Jatropha stem and it is commonly seen in Indonesia. The stem attacked by this pest normally drop. The presence can be determined by the larva penetration hole at the stem.

Control: The Insecticide typically utilized to manage this pest is carbofuran.

Pest of leaf: The typical 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 in short period. The quality and yield of the seeds get reduced due to the heavy attack.

Control: This can be managed by selecting the old larvae around the surface and getting rid of the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning feeling when allowed to contact with skin as it produces particular chemical substance. Initially the insect crowded in the leaf and after that spread out all over the plant when it ages.

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

Leaf Hopper: This bug is discovered mostly in tropical and subtropical regions. The insect targets the leaf and sucks 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 also attacks the leaf and makes the entire plant weak. The pest existence can be determined when the leaf ended up being yellowish, diminishes, turns red and drop. The insect can likewise be spread out through fallen leaves.

Control: Some preventive procedures can be done like appropriate sanitation and burning the fallen leaves. 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 serious pest which attacks the plant during bloom duration so the crop yield entirely drops. This pest is seen around the tropical region.

The harmful enzyme in the plant shrinks the entire 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 pest 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 tips.

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