Jatropha Curcas is getting significance commercially as the need 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 replacement and it is likewise very affordable compared to other fuels. Recently, Jatropha is facing some problem with pests and diseases. The insects are classified into two varieties: Pest that affect young plants and Pest that affect matured plants.

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

Agrotis ipsilon: It is frequently referred to as 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 and this will shrunk the plant completely.

Control: This insect can be controlled by picking the larva found 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 takes in the raw materials present in the soil and after that comes to the root. The larva attack might kill the entire plant.

Control: The plant with good resistance power can overcome the pest. For heavy attack, insecticides with elements carbosulfan and carbofuran can be utilized to eliminate the pest.

Army worm: Spodoptera litura presence can be by biting in the leaves. The severe infection might entirely eliminate the plants.

Control: Insecticides are utilized to control the insects.

Grasshopper: This is typical pest found in numerous plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The pest typically attacks 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 pest harms the jatropha curcas stem and it is widely seen in Indonesia. The stem assaulted by this insect typically drop. The presence can be identified by the larva penetration hole at the stem.

Control: The Insecticide normally used to control this insect is carbofuran.

Pest of leaf: The common insects 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 period. The quality and yield of the seeds get lowered due to the heavy attack.

Control: This can be managed 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 bug crowded in the leaf and then spread out all over the plant when it ages.

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

Leaf Hopper: This bug is discovered mainly in tropical and subtropical areas. The insect targets the leaf and sucks all the nutrients of the leaf and gets curls at the tip. Later, the entire leaf dry and pass away.

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

Mite: Mite also assaults the leaf and makes the whole plant weak. The insect presence can be determined when the leaf become yellow-colored, diminishes, turns red and fall down. The insect can likewise be spread 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 pest which attacks flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

Stink Bug: Sting bug is a serious pest which assaults the plant during bloom period so the crop yield totally drops. This insect is seen around the tropical area.

The poisonous 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 insects typically takes place attacks the plant in blooming season and this bug is seen widely 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 assaulted seeds are recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.