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<br>Jatropha Curcas is getting value commercially as the demand of fossil fuels increases greatly and also Jatropha is an environment-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel substitute and it is likewise really economical compared to other fuels. Recently, Jatropha is facing some difficulty with pests and diseases. The bugs are classified into two ranges: Pest that impact young plants and Pest that affect matured plants.<br>
<br>Young plant pests: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.<br>
<br>Agrotis ipsilon: It is commonly referred to as Cut worm. This pest 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 totally.<br>
<br>Control: This bug can be managed by choosing the larva discovered around the plants or by mixing the bran, sawdust with insecticides.<br>
<br>Scarabaeid Beetle: This insect damages the root of the young plant. Initially, the larva consumes the natural matters present in the soil and after that concerns the root. The larva attack might kill the entire plant.<br>
<br>Control: The plant with good resistance power can get rid of the pest. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to kill the insect.<br>
<br>Army worm: Spodoptera litura presence can be identified by biting in the leaves. The extreme infection could totally eliminate the plants.<br>
<br>Control: Insecticides are utilized to control the pests.<br>
<br>Grasshopper: This prevails bug discovered in several plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The insect typically attacks the young plant.<br>
<br>Control: The insecticides utilized betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.<br>
<br>Pest observed in fully grown plants:<br>
<br>Pest of Stem: Ostrinia furnacalis, Xyleborus spp.<br>
<br>Ostrinia furnacalis and Xyleborus: This insect damages the Jatropha stem and it is commonly seen in Indonesia. The stem assaulted by this bug normally fall down. The presence can be identified by the larva penetration hole at the stem.<br>
<br>Control: The Insecticide generally utilized to manage this insect is carbofuran.<br>
<br>Pest of leaf: The typical insects observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.<br>
<br>Leaf Caterpillar: This pest can eat all the leaves of the plant simply put duration. The quality and yield of the seeds get minimized due to the heavy attack.<br>
<br>Control: This can be controlled by choosing the old larvae around the surface area and getting rid of the assaulted leaves.<br>
<br>Needle Caterpillar: This caterpillar is covered with spines and produces a burning experience when enabled to contact with skin as it produces particular chemical compound. Initially the insect crowded in the leaf and after that spread out all over the plant when it ages.<br>
<br>Control: Manually, the pest can be killed only by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.<br>
<br>Leaf Hopper: This pest is found primarily in tropical and subtropical areas. The insect targets the leaf and draws all the nutrients of the leaf and gets curls at the suggestion. Later, the whole leaf dry and pass away.<br>
<br>Control: The heavy attack can be managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.<br>
<br>Mite: Mite likewise assaults the leaf and makes the entire plant weak. The bug presence can be determined when the leaf become yellowish, diminishes, reddens and fall down. The insect can likewise be spread through fallen leaves.<br>
<br>Control: Some preventive procedures can be done like proper sanitation and the fallen leaves. Heavy attack can be dealt with by spraying insecticides.<br>
<br>Some dreadful bug which attacks flower and fruit are, Stink bug (Nezara viridula)<br>
<br>Chrysocoris javanus, Tip borer caterpillar.<br>
<br>Stink Bug: Sting bug is a severe pest which assaults the plant throughout bloom period so the crop yield entirely falls down. This insect is seen around the tropical area.<br>
<br>The hazardous enzyme in the plant shrinks the entire plant.<br>
<br>Control: Insecticides advised for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.<br>
<br>Tip borer caterpillar: The pests commonly happens attacks the plant in flowering season and this insect is seen widely in tropical areas. The female pest laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant suggestions.<br>
<br>Control: Manually, the assaulted seeds are recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.<br>