Jatropha Curcas is gaining 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 substitute and it is likewise very affordable compared to other fuels. Recently, jatropha curcas is dealing with some problem with bugs and illness. The insects are categorized into 2 varieties: Pest that affect young plants and Pest that affect grown plants.

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

Agrotis ipsilon: It is frequently called Cut worm. This bug affects 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 shrunk the plant entirely.

Control: This pest can be managed by selecting the larva discovered around the plants or by blending the bran, sawdust with insecticides.

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

Control: The plant with great 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 identified by biting in the leaves. The severe infection might totally kill the plants.

Control: Insecticides are used to manage the insects.

Grasshopper: This is common bug 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 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 bug damages the jatropha curcas stem and it is extensively seen in Indonesia. The stem attacked by this pest typically fall down. The existence can be recognized by the larva penetration hole at the stem.

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

Pest of leaf: The typical pests 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 other words period. The quality and yield of the seeds get decreased due to the heavy attack.

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

Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when enabled to exposure to skin as it produces specific chemical compound. Initially the pest crowded in the leaf and then spread out all over the plant when it ages.

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

Leaf Hopper: This insect 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 attacks the leaf and makes the whole plant weak. The bug presence can be determined when the leaf ended up being yellow-colored, diminishes, and drop. The bug can likewise be spread out through fallen leaves.

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

Some terrible pest which assaults flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

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

The poisonous enzyme in the plant shrinks the entire plant.

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

Tip borer caterpillar: The insects frequently happens attacks the plant in flowering season and this bug is seen commonly in tropical regions. The female insect 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.