Jatropha Curcas is gaining value commercially as the need of nonrenewable fuel sources increases greatly and likewise Jatropha is an eco-friendly energy . Plantation of this plant is thought about to be an outstanding fuel alternative and it is also really economical compared to other fuels. Recently, jatropha curcas is dealing with some trouble with pests and diseases. The insects are classified into two ranges: Pest that impact young plants and Pest that impact matured plants.
Young plant pests: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is commonly referred to as Cut worm. This bug impacts the seedlings and young jatropha curcas plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface and this will diminished the plant entirely.
Control: This bug can be managed by selecting the larva discovered around the plants or by blending the bran, sawdust with insecticides.
Scarabaeid Beetle: This insect damages the root of the young plant. Initially, the larva consumes the raw materials present in the soil and after that pertains to the root. The larva attack might eliminate the entire plant.
Control: The plant with great resistance power can get rid of the pest. For heavy attack, insecticides with elements carbosulfan and carbofuran can be utilized to eliminate the bug.
Army worm: Spodoptera litura existence can be identified by biting in the leaves. The severe infection could entirely eliminate the plants.
Control: Insecticides are used to control the bugs.
Grasshopper: This is typical bug found in a number of plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The insect frequently attacks the young plant.
Control: The insecticides used 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 extensively seen in Indonesia. The stem attacked by this pest normally drop. 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 typical pests observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This insect can consume all the leaves of the plant simply put duration. The quality and yield of the seeds get lowered due to the heavy attack.
Control: This can be managed by selecting the old larvae around the surface area and tossing away the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when enabled to exposure to skin as it produces specific chemical substance. Initially the bug crowded in the leaf and then spread out all over the plant when it gets older.
Control: Manually, the insect can be killed only by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.
Leaf Hopper: This pest is found mostly in tropical and subtropical areas. 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 die.
Control: The heavy attack can be controlled by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite also attacks the leaf and makes the entire plant weak. The bug existence can be recognized when the leaf become yellowish, diminishes, turns red and drop. The bug can also be spread through fallen leaves.
Control: Some preventive measures can be done like appropriate sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.
Some dreadful 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 throughout bloom period so the crop yield entirely falls down. This pest is seen around the tropical region.
The hazardous enzyme in the plant shrinks the whole plant.
Control: Insecticides advised for this bug is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The insects commonly takes place attacks the plant in flowering season and this pest is seen extensively in tropical regions. The female pest laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant suggestions.
Control: Manually, the assaulted seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.
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Pests Of Jatropha
Avis Greene edited this page 2025-01-18 09:09:19 +08:00