Pests Of Jatropha

Jatropha Curcas is acquiring significance commercially as the demand of fossil fuels increases enormously and also jatropha curcas is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel substitute and it is likewise extremely cost-effective compared to other fuels. Recently, Jatropha is facing some difficulty with insects and diseases. The pests are classified into two varieties: Pest that affect young plants and Pest that impact grown plants.


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


Agrotis ipsilon: It is commonly referred to as Cut worm. This bug affects the seedlings and young jatropha curcas plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface area and this will shrunk the plant totally.


Control: This insect can be controlled by choosing the larva discovered around the plants or by blending the bran, sawdust with insecticides.


Scarabaeid Beetle: This pest damages the root of the young plant. Initially, the larva takes in the raw materials present in the soil and after that pertains to the root. The larva attack may eliminate the entire plant.


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


Army worm: Spodoptera litura presence can be identified by biting in the leaves. The severe infection could entirely kill the plants.


Control: Insecticides are utilized to control the pests.


Grasshopper: This is typical bug discovered in numerous plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The pest frequently assaults the young plant.


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


Pest observed in mature plants:


Pest of Stem: Ostrinia furnacalis, Xyleborus spp.


Ostrinia furnacalis and Xyleborus: This insect damages the Jatropha stem and it is extensively seen in Indonesia. The stem assaulted by this insect normally drop. The presence can be determined by the larva penetration hole at the stem.


Control: The Insecticide usually used to control this pest is carbofuran.


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


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


Control: This can be controlled by choosing the old larvae around the surface and discarding the assaulted leaves.


Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when enabled to call with skin as it produces particular chemical compound. Initially the insect 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 bug is found mostly in tropical and subtropical areas. The the leaf and sucks all the nutrients of the leaf and gets curls at the idea. 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 entire plant weak. The bug presence can be recognized when the leaf become yellowish, shrinks, turns red and drop. The bug can likewise be spread through fallen leaves.


Control: Some preventive procedures can be done like correct 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 severe pest which attacks the plant during blossom period so the crop yield totally falls down. This pest is seen around the tropical region.


The hazardous enzyme in the plant diminishes the entire plant.


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


Tip borer caterpillar: The insects typically happens attacks the plant in blooming season and this bug is seen commonly 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 ideas.


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