Pests Of Jatropha

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Jatropha Curcas is gaining significance commercially as the need of fossil fuels increases greatly and likewise Jatropha is an eco-friendly energy plantation.

Jatropha Curcas is acquiring 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 substitute and it is likewise extremely economical compared to other fuels. Recently, Jatropha is dealing with some difficulty with insects and diseases. The bugs are classified into 2 ranges: Pest that affect young plants and Pest that impact grown plants.


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


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


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


Scarabaeid Beetle: This insect ruins the root of the young plant. Initially, the larva takes in the raw materials present in the soil and then comes to the root. The larva attack may eliminate the whole plant.


Control: The plant with good resistance power can get rid of the pest. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to kill the insect.


Army worm: Spodoptera litura existence can be determined by biting in the leaves. The extreme infection might totally eliminate the plants.


Control: Insecticides are used to manage the insects.


Grasshopper: This is typical insect discovered in several plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The pest typically attacks the young plant.


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


Pest observed in fully grown plants:


Pest of Stem: Ostrinia furnacalis, Xyleborus spp.


Ostrinia furnacalis and Xyleborus: This insect harms the jatropha curcas stem and it is commonly seen in Indonesia. The stem attacked by this insect generally drop. The presence can be recognized by the larva penetration hole at the stem.


Control: The Insecticide typically 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 eat all the leaves of the plant simply put duration. The quality and yield of the seeds get decreased due to the heavy attack.


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


Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning feeling when allowed to call with skin as it produces specific chemical compound. Initially the insect crowded in the leaf and then spread all over the plant when it gets older.


Control: Manually, the bug can be eliminated only by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.


Leaf Hopper: This insect is found mainly in tropical and subtropical areas. The pest targets the leaf and sucks 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 using 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, reddens and fall down. The pest can also be spread out through fallen leaves.


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


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


Chrysocoris javanus, Tip borer caterpillar.


Stink Bug: Sting bug is a major bug which attacks the plant during blossom period so the crop yield totally falls down. This pest is seen around the tropical area.


The poisonous enzyme in the plant shrinks the whole plant.


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


Tip borer caterpillar: The insects commonly 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 suggestions.


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

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