Jatropha Curcas is gaining value commercially as the need of fossil fuels increases enormously and also Jatropha is an environment-friendly energy plantation. Plantation of this plant is considered to be an excellent fuel substitute and it is likewise very affordable compared to other fuels. Recently, jatropha curcas is facing some problem with bugs and diseases. The insects are categorized into two ranges: Pest that affect young plants and Pest that impact matured plants.
Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is frequently referred to as Cut worm. This insect 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 shrunk the plant completely.
Control: This insect can be managed by picking the larva discovered around the plants or by blending the bran, sawdust with insecticides.
Scarabaeid Beetle: This pest ruins the root of the young plant. Initially, the larva consumes the natural matters present in the soil and then concerns the root. The larva attack may kill the entire plant.
Control: The plant with good resistance power can conquer the insect. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to eliminate the insect.
Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The serious infection could entirely kill the plants.
Control: Insecticides are used to control the insects.
Grasshopper: This is common insect found in several plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The pest frequently 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 pest damages the jatropha curcas stem and it is widely seen in Indonesia. The stem attacked by this bug normally fall down. The existence can be identified by the larva penetration hole at the stem.
Control: The Insecticide usually used to manage this bug is carbofuran.
Pest of leaf: The common bugs observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This insect 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 selecting the old larvae around the surface and throwing away the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning feeling when enabled to call with skin as it produces specific chemical substance. Initially the pest crowded in the leaf and then spread out all over the plant when it grows older.
Control: Manually, the insect 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 discovered primarily in tropical and subtropical regions. The pest targets the leaf and draws all the nutrients of the leaf and gets curls at the idea. Later, the entire leaf dry and pass away.
Control: The heavy attack can be managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite also the leaf and makes the entire plant weak. The pest existence can be recognized when the leaf ended up being yellowish, shrinks, turns red and fall down. The insect can likewise be spread out through fallen leaves.
Control: Some preventive measures can be simulated appropriate sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.
Some terrible insect which attacks flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a serious insect which attacks the plant during blossom duration so the crop yield completely falls down. This bug is seen around the tropical region.
The poisonous 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 pests commonly occurs attacks the plant in blooming 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 ideas.
Control: Manually, the attacked seeds are advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.
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Pests Of Jatropha
clarissathynne edited this page 2025-01-11 12:10:26 -05:00