Jatropha Curcas is gaining significance commercially as the demand of fossil fuels increases significantly and likewise Jatropha is an environment-friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel substitute and it is also very affordable compared to other fuels. Recently, Jatropha is dealing with some trouble with bugs and illness. The pests are classified into 2 ranges: Pest that affect young plants and Pest that impact grown plants.
Young plant pests: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is frequently referred to as Cut worm. This bug 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 area and this will diminished the plant completely.
Control: This bug can be controlled by picking the larva discovered around the plants or by mixing the bran, sawdust with insecticides.
Scarabaeid Beetle: This bug destroys the root of the young plant. Initially, the larva takes in the organic matters present in the soil and after that pertains to the root. The larva attack might eliminate the whole plant.
Control: The plant with great resistance power can conquer the bug. For heavy attack, insecticides with components carbosulfan and carbofuran can be utilized to kill the insect.
Army worm: Spodoptera litura presence can be determined by biting in the leaves. The serious infection might totally eliminate the plants.
Control: Insecticides are utilized to control the insects.
Grasshopper: This is typical pest found in numerous plants. Valanga nigricornis and Locusta migratoria widely attacks the plant. The bug often attacks 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 harms the Jatropha stem and it is commonly seen in Indonesia. The stem attacked by this pest usually fall down. The existence can be identified by the larva penetration hole at the stem.
Control: The Insecticide typically used to manage this bug is carbofuran.
Pest of leaf: The typical 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 in other words duration. The quality and yield of the seeds get reduced due to the heavy attack.
Control: This can be managed by choosing the old larvae around the surface and discarding the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when enabled to exposure to skin as it produces certain chemical substance. the pest crowded in the leaf and then spread out all over the plant when it grows older.
Control: Manually, the pest can be killed only by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.
Leaf Hopper: This pest is discovered primarily in tropical and subtropical regions. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the idea. Later, the whole leaf dry and die.
Control: The heavy attack can be controlled by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite also assaults the leaf and makes the entire plant weak. The bug existence can be recognized when the leaf ended up being yellowish, shrinks, turns red and fall down. The pest can likewise 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 terrible pest which attacks flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a severe insect which assaults the plant during bloom duration so the crop yield totally drops. This pest is seen around the tropical area.
The toxic 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 bugs typically occurs attacks the plant in blooming season and this insect is seen extensively 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 blooming season.
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Pests Of Jatropha
Chantal Balsillie edited this page 2025-01-12 22:29:33 +00:00