Jatropha Curcas is gaining importance commercially as the need of fossil fuels increases tremendously and also jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel alternative and it is also really affordable compared to other fuels. Recently, jatropha curcas is facing some trouble with bugs and diseases. The pests are categorized into two varieties: Pest that affect young plants and Pest that impact developed plants.

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

Agrotis ipsilon: It is commonly referred to as Cut worm. This bug impacts the seedlings and young Jatropha plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface and this will shrunk the plant entirely.

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

Scarabaeid Beetle: This bug damages the root of the young plant. Initially, the larva takes in the raw materials present in the soil and then concerns the root. The larva attack might kill the entire plant.

Control: The plant with excellent resistance power can conquer the pest. 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 completely eliminate the plants.

Control: Insecticides are utilized to control the pests.

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

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

Pest observed in mature plants:

Pest of Stem: Ostrinia furnacalis, Xyleborus spp.

Ostrinia furnacalis and Xyleborus: This pest damages the Jatropha stem and it is widely seen in Indonesia. The stem attacked by this pest 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 bugs observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.

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

Control: This can be managed by selecting the old larvae around the surface and discarding the attacked leaves.

Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when permitted to contact with skin as it certain chemical substance. Initially the bug crowded in the leaf and after that spread 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 managed by spraying organophosphate insecticides.

Leaf Hopper: This insect is found mostly in tropical and subtropical areas. The bug targets the leaf and draws all the nutrients of the leaf and gets curls at the idea. 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 entire plant weak. The bug existence can be identified when the leaf become yellowish, diminishes, turns red and fall down. The pest can likewise be spread out through fallen leaves.

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

Some dreadful bug 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 throughout bloom period so the crop yield totally drops. This insect is seen around the tropical region.

The harmful enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The insects commonly takes place attacks the plant in blooming season and this pest is seen commonly 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 pointers.

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