Jatropha jatropha curcas is getting importance commercially as the demand of fossil fuels increases significantly and also Jatropha is an eco-friendly energy plantation. Plantation of this plant is considered to be an outstanding fuel substitute and it is also extremely affordable compared to other fuels. Recently, is facing some problem with insects and illness. The insects 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 typically called Cut worm. This bug affects the seedlings and young Jatropha plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface and this will diminished the plant completely.

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 damages the root of the young plant. Initially, the larva takes in the natural matters present in the soil and then concerns the root. The larva attack may kill the entire plant.

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

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

Control: Insecticides are used to manage the bugs.

Grasshopper: This is typical pest discovered in numerous plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The insect frequently assaults the young plant.

Control: The insecticides utilized 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 commonly seen in Indonesia. The stem assaulted by this insect normally drop. The existence can be determined by the larva penetration hole at the stem.

Control: The Insecticide normally 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 simply put 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 and discarding the assaulted leaves.

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

Control: Manually, the insect can be killed only 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 pest targets the leaf and draws 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 managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite also attacks the leaf and makes the whole plant weak. The bug existence can be determined when the leaf become yellow-colored, diminishes, reddens and drop. The pest can also be spread through fallen leaves.

Control: Some preventive steps can be done like correct sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.

Some terrible pest which attacks flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a severe pest which attacks the plant throughout bloom duration so the crop yield totally falls down. This insect is seen around the tropical area.

The toxic enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The insects typically occurs attacks the plant in flowering season and this bug is seen commonly in tropical areas. The female pest laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant pointers.

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