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Jatropha jatropha curcas is getting significance commercially as the need of fossil fuels increases tremendously and also Jatropha is an eco-friendly energy plantation. Plantation of this plant is considered to be an excellent fuel replacement and it is likewise really cost-effective compared to other fuels. Recently, Jatropha is dealing with some problem with bugs and diseases. The pests are categorized into 2 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 commonly referred to as Cut worm. This insect affects 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 diminished the plant entirely.

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

Scarabaeid Beetle: This insect destroys the root of the young plant. Initially, the larva takes in the natural matters present in the soil and after that comes to the root. The larva attack might kill the entire plant.

Control: The plant with great resistance power can get rid of the pest. For heavy attack, insecticides with components carbosulfan and carbofuran can be used to eliminate the bug.

Army worm: Spodoptera litura existence can be recognized by biting in the leaves. The extreme infection might entirely kill the plants.

Control: Insecticides are utilized to control the pests.

Grasshopper: This prevails bug discovered in numerous plants. Valanga nigricornis and Locusta migratoria extensively assaults 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 harms the jatropha curcas stem and it is commonly seen in Indonesia. The stem assaulted by this insect generally fall down. The existence can be identified by the larva penetration hole at the stem.

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

Pest of leaf: The typical insects are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.

Leaf Caterpillar: This bug can eat all the leaves of the plant in other words period. 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 and discarding the attacked leaves.

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

Control: Manually, the pest can be eliminated 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 regions. 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 managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite likewise attacks the leaf and makes the entire plant weak. The insect existence can be identified when the leaf become yellow-colored, diminishes, turns red and fall down. The pest can also be spread out through fallen leaves.

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

Some awful insect which attacks flower and fruit are, Stink bug (Nezara viridula)

Chrysocoris javanus, Tip borer caterpillar.

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

The hazardous enzyme in the plant shrinks the whole plant.

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

Tip borer caterpillar: The insects typically happens attacks the plant in flowering season and this bug is seen widely in tropical regions. The female pest laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant pointers.

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