Jatropha Curcas is gaining importance commercially as the demand of fossil fuels 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 affordable compared to other fuels. Recently, Jatropha is facing some problem with insects and diseases. The bugs are classified into 2 varieties: Pest that affect young plants and Pest that impact developed plants.

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

Agrotis ipsilon: It is typically known as . This bug impacts the seedlings and young Jatropha plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface and this will diminished the plant entirely.

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

Scarabaeid Beetle: This bug ruins the root of the young plant. Initially, the larva consumes the natural matters present in the soil and after that comes to the root. The larva attack may kill the entire plant.

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

Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The severe infection might entirely kill 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 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 pest damages the jatropha curcas stem and it is commonly seen in Indonesia. The stem assaulted by this bug usually drop. The existence can be identified by the larva penetration hole at the stem.

Control: The Insecticide generally used to control this bug is carbofuran.

Pest of leaf: The common pests observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.

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

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

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when allowed to contact with skin as it produces certain chemical compound. Initially the pest crowded in the leaf and after that spread out all over the plant when it gets older.

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

Leaf Hopper: This bug is found mainly in tropical and subtropical regions. The pest targets the leaf and sucks all the nutrients of the leaf and gets curls at the idea. Later, the whole leaf dry and die.

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 pest presence can be determined when the leaf ended up being yellowish, diminishes, reddens and fall down. The insect can also be spread out through fallen leaves.

Control: Some preventive procedures can be simulated proper sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.

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

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a severe pest which assaults the plant during blossom duration so the crop yield completely falls down. This pest is seen around the tropical area.

The hazardous enzyme in the plant shrinks the whole plant.

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

Tip borer caterpillar: The pests typically occurs attacks the plant in flowering 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 ideas.

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