Jatropha Curcas is acquiring significance commercially as the need of fossil fuels increases tremendously and likewise jatropha curcas is an eco-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel alternative and it is also extremely economical compared to other fuels. Recently, Jatropha is facing some difficulty with insects and diseases. The pests are categorized into two varieties: Pest that affect young plants and Pest that impact grown plants.
Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is frequently referred to as Cut worm. This pest impacts the seedlings and young jatropha curcas plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface and this will diminished the plant entirely.
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 destroys the root of the young plant. Initially, the larva consumes the natural matters present in the soil and after that comes to the root. The larva attack might kill the entire plant.
Control: The plant with great resistance power can the bug. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to eliminate the insect.
Army worm: Spodoptera litura existence can be identified by biting in the leaves. The serious infection might totally eliminate the plants.
Control: Insecticides are utilized to control the bugs.
Grasshopper: This prevails pest discovered in several plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The pest typically 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 bug damages the jatropha curcas stem and it is extensively seen in Indonesia. The stem assaulted by this pest normally fall down. The presence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide normally utilized to manage this pest is carbofuran.
Pest of leaf: The common pests observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This pest can consume all the leaves of the plant in brief duration. The quality and yield of the seeds get decreased 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 experience when permitted to contact with skin as it produces certain chemical substance. Initially the pest crowded in the leaf and after that spread all over the plant when it grows older.
Control: Manually, the bug 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 found mainly in tropical and subtropical areas. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the tip. Later, the whole leaf dry and pass away.
Control: The heavy attack can be managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite likewise attacks the leaf and makes the entire plant weak. The insect presence can be determined when the leaf become yellow-colored, shrinks, turns red and fall down. The bug can also be spread out through fallen leaves.
Control: Some preventive procedures can be simulated appropriate sanitation and burning the fallen leaves. Heavy attack can be dealt with by spraying insecticides.
Some terrible insect which assaults flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a severe bug which attacks the plant during bloom period so the crop yield totally falls down. This insect is seen around the tropical area.
The harmful 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 bugs commonly takes place attacks the plant in flowering season and this pest is seen widely in tropical regions. 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 suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.
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Pests Of Jatropha
Veronica Watkin edited this page 2025-01-12 20:22:32 +08:00