Jatropha jatropha curcas is getting importance commercially as the need of nonrenewable fuel sources increases greatly and also Jatropha is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel alternative and it is likewise extremely economical compared to other fuels. Recently, Jatropha is facing some difficulty with insects and illness. The bugs are categorized into 2 ranges: Pest that affect young plants and Pest that impact matured plants.

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

Agrotis ipsilon: It is frequently referred to as Cut worm. This pest 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 and this will shrunk the plant totally.

Control: This bug can be controlled by selecting the larva discovered around the plants or by blending the bran, sawdust with insecticides.

Scarabaeid Beetle: This insect damages the root of the young plant. Initially, the larva consumes the organic matters present in the soil and after that comes to the root. The larva attack might kill the entire plant.

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

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

Control: Insecticides are utilized to manage the pests.

Grasshopper: This is typical insect found in several plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The insect typically 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 bug harms the Jatropha stem and it is commonly seen in Indonesia. The stem assaulted by this insect normally fall down. The presence 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 pests observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.

Leaf Caterpillar: This insect can consume all the leaves of the plant in short period. The quality and yield of the seeds get minimized due to the heavy attack.

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

Needle Caterpillar: This caterpillar is covered with spines and produces a burning experience when allowed to exposure to skin as it produces specific chemical compound. Initially the insect crowded in the leaf and then spread all over the plant when it grows older.

Control: Manually, the insect can be killed 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 regions. The insect targets the leaf and draws 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 utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite likewise assaults the leaf and makes the whole plant weak. The bug presence can be identified when the leaf become yellow-colored, diminishes, reddens and fall down. The insect can also be spread through fallen leaves.

Control: Some preventive procedures can be simulated proper 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 major bug which attacks the plant throughout bloom period so the crop yield entirely drops. This pest is seen around the tropical area.

The poisonous enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The bugs commonly takes place attacks the plant in flowering season and this pest 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 pointers.

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