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Jatropha Curcas is getting importance commercially as the demand of nonrenewable fuel sources increases tremendously and likewise Jatropha is an eco-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel substitute and it is likewise extremely affordable compared to other fuels. Recently, Jatropha is dealing with some difficulty with bugs and illness. The bugs are categorized into two ranges: Pest that affect young plants and Pest that affect matured plants.

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

Agrotis ipsilon: It is commonly called Cut worm. This insect affects the seedlings and young Jatropha plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface area and this will shrunk the plant completely.

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

Scarabaeid Beetle: This bug damages the root of the young plant. Initially, the larva consumes the organic matters present in the soil and then pertains to the root. The larva attack may eliminate the entire plant.

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

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

Control: Insecticides are utilized to control the bugs.

Grasshopper: This is typical insect discovered in a number of plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The bug frequently assaults the young plant.

Control: The insecticides used betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.

Pest observed in mature 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 generally fall down. The existence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide usually used 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 simply put duration. The quality and yield of the seeds get decreased due to the heavy attack.

Control: This can be controlled by choosing the old larvae around the surface area and tossing away the attacked leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when permitted to call with skin as it produces certain chemical substance. Initially the pest crowded in the leaf and after that spread out all over the plant when it ages.

Control: Manually, the insect can be eliminated just by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.

Leaf Hopper: This insect is discovered mostly in tropical and subtropical areas. The pest targets the leaf and draws all the nutrients of the leaf and gets curls at the tip. Later, the entire leaf dry and die.

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

Mite: Mite also attacks the leaf and makes the whole plant weak. The insect existence can be determined when the leaf become yellow-colored, diminishes, turns red and fall down. The bug can likewise be spread through fallen leaves.

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

Some terrible pest which assaults 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 completely falls down. This insect is seen around the tropical region.

The hazardous enzyme in the plant shrinks the whole plant.

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

Tip borer caterpillar: The pests frequently occurs attacks the plant in blooming season and this pest is seen extensively in tropical regions. The female bug 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 suggested to burn. The insecticides like and bensultap are sprayed at the blooming season.