Pests Of Jatropha

Jatropha Curcas is getting value commercially as the demand of nonrenewable fuel sources increases greatly and likewise Jatropha is an environmentally friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel replacement and it is likewise very affordable compared to other fuels. Recently, jatropha curcas is facing some problem with pests and diseases. The pests are classified into two ranges: Pest that impact young plants and Pest that impact developed plants.


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


Agrotis ipsilon: It is frequently called Cut worm. This pest impacts 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 entirely.


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


Scarabaeid Beetle: This pest damages the root of the young plant. Initially, the larva consumes the organic matters present in the soil and then comes to the root. The larva attack may eliminate the entire plant.


Control: The plant with excellent resistance power can conquer the bug. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to eliminate the pest.


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


Control: Insecticides are used to manage the bugs.


Grasshopper: This prevails insect discovered in numerous plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The insect often attacks 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 harms the Jatropha stem and it is commonly seen in Indonesia. The stem assaulted by this insect usually fall down. The presence can be determined by the larva penetration hole at the stem.


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


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


Leaf Caterpillar: This bug can consume all the leaves of the plant in other words period. The quality and yield of the seeds get minimized due to the heavy attack.


Control: This can be managed by picking the old larvae around the surface and getting rid of the attacked leaves.


Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when allowed to call with skin as it produces specific chemical compound. Initially the in the leaf and after that spread all over the plant when it ages.


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


Leaf Hopper: This bug is discovered mostly in tropical and subtropical regions. The pest targets the leaf and draws all the nutrients of the leaf and gets curls at the suggestion. 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 likewise assaults the leaf and makes the entire plant weak. The bug existence can be determined when the leaf become yellow-colored, shrinks, turns red and drop. The pest can likewise be spread through fallen leaves.


Control: Some preventive procedures can be simulated proper 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 severe pest which assaults the plant throughout bloom period so the crop yield entirely drops. This pest is seen around the tropical region.


The hazardous enzyme in the plant shrinks the entire plant.


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


Tip borer caterpillar: The pests typically happens attacks the plant in blooming season and this pest is seen extensively in tropical areas. The female insect laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant ideas.


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