Jatropha Curcas is acquiring importance commercially as the need of nonrenewable fuel sources increases greatly and also jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel replacement and it is also really economical compared to other fuels. Recently, jatropha curcas is dealing with some trouble with pests and illness. The bugs are categorized into 2 varieties: Pest that impact young plants and Pest that affect developed plants.

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

Agrotis ipsilon: It is commonly referred to as Cut worm. This insect impacts the seedlings and young Jatropha 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 totally.

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

Scarabaeid Beetle: This insect destroys the root of the young plant. Initially, the larva takes in the natural matters present in the soil and after that pertains to the root. The larva attack may kill the entire plant.

Control: The plant with good resistance power can conquer the bug. For heavy attack, insecticides with components carbosulfan and carbofuran can be utilized to kill the bug.

Army worm: Spodoptera litura existence can be determined by biting in the leaves. The severe infection might entirely eliminate the plants.

Control: Insecticides are used to manage the pests.

Grasshopper: This is typical bug found in several plants. Valanga nigricornis and Locusta migratoria extensively 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 bug damages the Jatropha stem and it is commonly seen in Indonesia. The stem attacked by this pest usually drop. The presence can be determined by the larva penetration hole at the stem.

Control: The Insecticide typically used to control this insect 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 consume all the leaves of the plant in other words duration. The quality and yield of the seeds get decreased due to the heavy attack.

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

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

Control: Manually, the insect 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 found mostly in tropical and subtropical regions. The insect targets the leaf and draws all the of the leaf and gets curls at the suggestion. Later, the entire leaf dry and pass away.

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

Mite: Mite likewise assaults the leaf and makes the entire plant weak. The insect existence can be identified when the leaf become yellowish, shrinks, reddens and drop. The bug can also be spread through fallen leaves.

Control: Some preventive procedures can be done like correct sanitation and burning the fallen leaves. Heavy attack can be treated 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 serious insect which attacks the plant during bloom duration so the crop yield entirely falls down. This bug is seen around the tropical area.

The toxic enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The insects frequently takes place attacks the plant in flowering season and this insect is seen extensively in tropical regions. The female pest 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 flowering season.