Pests Of Jatropha

Jatropha Curcas is acquiring significance commercially as the demand of fossil fuels increases significantly and likewise jatropha curcas is an environmentally friendly energy plantation. Plantation of this plant is considered to be an excellent fuel substitute and it is likewise really economical compared to other fuels. Recently, jatropha curcas is facing some problem with pests and illness. The pests are classified into 2 varieties: Pest that impact young plants and Pest that affect grown plants.


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


Agrotis ipsilon: It is typically understood as Cut worm. This pest affects the seedlings and young Jatropha plants. If the plant is by the cutworm, the stem gets cut nearer to the soil surface and this will diminished the plant totally.


Control: This insect can be managed by choosing the larva found 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 takes in the raw materials present in the soil and then pertains to the root. The larva attack may eliminate the entire plant.


Control: The plant with excellent resistance power can overcome the pest. For heavy attack, insecticides with parts carbosulfan and carbofuran can be utilized to kill the bug.


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


Control: Insecticides are used to manage the pests.


Grasshopper: This prevails insect found in numerous plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The pest typically assaults the young plant.


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


Pest observed in mature plants:


Pest of Stem: Ostrinia furnacalis, Xyleborus spp.


Ostrinia furnacalis and Xyleborus: This pest harms the jatropha curcas stem and it is widely seen in Indonesia. The stem attacked by this bug normally fall down. The existence can be identified by the larva penetration hole at the stem.


Control: The Insecticide generally utilized to manage this insect is carbofuran.


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


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


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


Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when permitted to exposure to skin as it produces specific chemical substance. Initially the insect crowded in the leaf and after that spread all over the plant when it gets older.


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 pest is found primarily in tropical and subtropical areas. The bug targets the leaf and draws all the nutrients of the leaf and gets curls at the pointer. 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 also attacks the leaf and makes the entire plant weak. The pest presence can be determined when the leaf ended up being yellowish, diminishes, reddens and drop. The insect can likewise be spread out through fallen leaves.


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


Some dreadful pest which attacks flower and fruit are, Stink bug (Nezara viridula)


Chrysocoris javanus, Tip borer caterpillar.


Stink Bug: Sting bug is a serious pest which assaults the plant during blossom period so the crop yield totally falls down. This insect is seen around the tropical region.


The harmful enzyme in the plant diminishes the whole plant.


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


Tip borer caterpillar: The insects frequently occurs attacks the plant in blooming season and this pest is seen widely 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 pointers.


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