Pests Of Jatropha

Jatropha Curcas is acquiring importance commercially as the demand of fossil fuels increases significantly and likewise Jatropha is an eco-friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel alternative and it is also very affordable compared to other fuels. Recently, Jatropha is facing some problem with pests and illness. The bugs are categorized into two varieties: Pest that impact young plants and Pest that affect matured plants.


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


Agrotis ipsilon: It is frequently referred to as Cut worm. This pest 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 pest can be managed by picking the larva discovered around the plants or by blending the bran, sawdust with insecticides.


Scarabaeid Beetle: This pest destroys the root of the young plant. Initially, the larva takes in the organic matters present in the soil and after that comes to the root. The larva attack may eliminate the whole plant.


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


Army worm: Spodoptera litura existence can be identified by biting in the leaves. The serious infection could completely kill the plants.


Control: Insecticides are utilized to manage the bugs.


Grasshopper: This is common insect found in several plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The pest often 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 pest harms the Jatropha stem and it is extensively seen in Indonesia. The stem assaulted by this insect usually drop. The existence can be identified by the larva penetration hole at the stem.


Control: The Insecticide generally utilized to manage 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 insect can eat all the leaves of the plant in brief period. The and yield of the seeds get lowered due to the heavy attack.


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


Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning feeling when permitted to exposure to skin as it produces particular chemical substance. Initially the pest crowded in the leaf and then spread all over the plant when it grows older.


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


Leaf Hopper: This bug is discovered mostly in tropical and subtropical areas. The insect targets the leaf and sucks 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 controlled by using insecticides like imidachloprid, beta cyfluthrin or carbosulfan.


Mite: Mite likewise attacks the leaf and makes the whole plant weak. The pest presence can be identified when the leaf ended up being yellowish, diminishes, reddens and fall down. The pest can likewise be spread out through fallen leaves.


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


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


Chrysocoris javanus, Tip borer caterpillar.


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


The hazardous enzyme in the plant diminishes the entire plant.


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


Tip borer caterpillar: The insects commonly happens attacks the plant in blooming season and this bug is seen widely in tropical areas. The female bug laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant tips.


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