Jatropha Curcas is gaining significance commercially as the need of nonrenewable fuel sources increases tremendously and likewise jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel replacement and it is also extremely affordable compared to other fuels. Recently, jatropha curcas is dealing with some difficulty with bugs and diseases. The pests are categorized into two ranges: Pest that affect young plants and Pest that impact grown plants.

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

Agrotis ipsilon: It is frequently called Cut worm. This pest 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 entirely.

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

Scarabaeid Beetle: This pest ruins the root of the young plant. Initially, the larva consumes the raw materials present in the soil and after that concerns the root. The larva attack may kill the entire plant.

Control: The plant with good resistance power can overcome the bug. For heavy attack, insecticides with components carbosulfan and carbofuran can be used to eliminate the bug.

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

Control: Insecticides are utilized to manage the insects.

Grasshopper: This is common bug discovered in several plants. Valanga nigricornis and Locusta migratoria commonly 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 pest damages the Jatropha stem and it is commonly seen in Indonesia. The stem assaulted by this bug usually drop. The existence can be recognized by the hole at the stem.

Control: The Insecticide usually used to manage this pest is carbofuran.

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

Control: This can be managed by picking the old larvae around the surface area and tossing away the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when allowed to call with skin as it produces specific chemical compound. Initially the pest crowded in the leaf and after that spread out all over the plant when it grows older.

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 discovered primarily in tropical and subtropical areas. The insect targets the leaf and sucks 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 using insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite likewise attacks the leaf and makes the entire plant weak. The pest presence can be recognized when the leaf ended up being yellow-colored, shrinks, turns red and drop. The bug can likewise be spread 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 insect which attacks the plant during bloom period so the crop yield totally drops. This insect is seen around the tropical region.

The toxic enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The pests frequently occurs attacks the plant in blooming 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 pointers.

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