Jatropha Curcas is acquiring value commercially as the demand of nonrenewable fuel sources increases enormously and also Jatropha is an environment-friendly energy plantation. Plantation of this plant is considered to be an outstanding fuel substitute and it is also extremely cost-effective compared to other fuels. Recently, jatropha curcas is dealing with some trouble with bugs and diseases. The insects are categorized 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 commonly understood as Cut worm. This bug affects 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 controlled by choosing the larva discovered around the plants or by blending the bran, sawdust with insecticides.

Scarabaeid Beetle: This pest damages the root of the young plant. Initially, the larva takes in the natural matters present in the soil and after that concerns the root. The larva attack may kill the entire plant.

Control: The plant with excellent resistance power can get rid of the insect. For heavy attack, insecticides with elements carbosulfan and carbofuran can be utilized to eliminate the bug.

Army worm: Spodoptera litura existence can be identified by biting in the leaves. The extreme infection might entirely kill the plants.

Control: Insecticides are utilized to manage the bugs.

Grasshopper: This is typical bug found in a number of plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The pest 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 insect damages the jatropha curcas stem and it is widely seen in Indonesia. The stem assaulted by this bug generally fall down. The existence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide usually utilized to control this insect 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 other words duration. The quality and yield of the seeds get lowered due to the heavy attack.

Control: This can be managed by choosing the old larvae around the surface area and getting rid of the attacked leaves.

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning feeling when enabled to contact with skin as it produces certain chemical substance. Initially the insect crowded in the leaf and then spread out all over the plant when it grows older.

Control: Manually, the bug can be eliminated only by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.

Leaf Hopper: This bug is discovered mainly 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 whole leaf dry and pass away.

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

Mite: Mite also assaults the leaf and makes the entire plant weak. The insect existence can be identified when the leaf ended up being yellow-colored, shrinks, reddens and drop. 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 terrible insect 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 blossom duration so the crop yield completely falls down. This bug is seen around the tropical region.

The harmful enzyme in the plant diminishes the whole plant.

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

Tip borer caterpillar: The bugs typically occurs attacks the plant in blooming season and this insect is seen widely in tropical areas. 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 attacked seeds are advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.