Jatropha Curcas is gaining significance commercially as the need of nonrenewable fuel sources increases significantly and likewise Jatropha is an environmentally friendly energy plantation. Plantation of this plant is considered to be an excellent fuel substitute and it is also very economical compared to other fuels. Recently, jatropha curcas is facing some difficulty with bugs and diseases. The bugs are classified into 2 ranges: Pest that affect young plants and Pest that impact grown 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 affected by the cutworm, the stem gets cut nearer to the soil surface area and this will diminished the plant entirely.

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 pest ruins the root of the young plant. Initially, the larva takes in the raw materials 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 get rid of the insect. For heavy attack, insecticides with components carbosulfan and carbofuran can be used to kill the bug.

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

Control: Insecticides are utilized to the insects.

Grasshopper: This prevails pest found in numerous plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The pest frequently assaults the young plant.

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

Pest observed in fully grown plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This insect harms the Jatropha stem and it is widely seen in Indonesia. The stem assaulted by this pest usually fall down. The presence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide generally utilized to manage 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 lowered due to the heavy attack.

Control: This can be controlled by selecting the old larvae around the surface area and discarding the assaulted leaves.

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning experience when allowed to exposure to skin as it produces particular chemical compound. Initially the insect crowded in the leaf and then spread out all over the plant when it ages.

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

Leaf Hopper: This pest is discovered mainly in tropical and subtropical areas. The bug 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 likewise assaults the leaf and makes the entire plant weak. The bug existence can be recognized when the leaf ended up being yellow-colored, diminishes, reddens and fall down. The pest can likewise be spread out 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 dreadful insect which assaults flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a serious insect which assaults the plant throughout bloom duration so the crop yield entirely drops. This bug is seen around the tropical area.

The harmful enzyme in the plant diminishes the entire plant.

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

Tip borer caterpillar: The pests typically happens attacks the plant in blooming 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 recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.