Jatropha Curcas is gaining significance commercially as the need of nonrenewable fuel sources increases tremendously and likewise Jatropha is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel alternative and it is also very cost-effective compared to other fuels. Recently, Jatropha is dealing with some difficulty with bugs and illness. The bugs are classified into 2 varieties: Pest that affect young plants and Pest that impact matured plants.

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

Agrotis ipsilon: It is commonly referred to as Cut worm. This pest 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 diminished the plant .

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

Scarabaeid Beetle: This insect ruins the root of the young plant. Initially, the larva consumes the natural matters present in the soil and after that pertains to the root. The larva attack might 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 utilized to kill the insect.

Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The extreme infection might totally eliminate the plants.

Control: Insecticides are used to manage the bugs.

Grasshopper: This prevails bug found in a number of plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The pest typically 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 harms the Jatropha stem and it is extensively seen in Indonesia. The stem attacked by this bug typically drop. The presence can be identified by the larva penetration hole at the stem.

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

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

Leaf Caterpillar: This pest can consume 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 discarding the attacked leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning sensation when permitted to contact with skin as it produces particular chemical substance. Initially the insect crowded in the leaf and after that spread out all over the plant when it gets older.

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 bug is found primarily in tropical and subtropical areas. The pest targets the leaf and sucks 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 controlled by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite also assaults the leaf and makes the entire plant weak. The insect existence can be recognized when the leaf ended up being yellowish, diminishes, reddens and drop. The bug can also be spread out through fallen leaves.

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

Some awful insect 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 duration so the crop yield completely drops. This bug is seen around the tropical area.

The harmful enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The insects commonly takes place attacks the plant in flowering season and this bug is seen widely in tropical areas. 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 monocrotophos and bensultap are sprayed at the blooming season.