Jatropha Curcas is gaining 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 really affordable compared to other fuels. Recently, jatropha curcas is facing some difficulty with bugs and illness. The bugs are categorized into two varieties: Pest that affect young plants and Pest that affect matured plants.
Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is frequently called 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 area and this will shrunk the plant totally.
Control: This bug can be managed by picking the larva discovered around the plants or by mixing the bran, sawdust with insecticides.
Scarabaeid Beetle: This pest ruins the root of the young plant. Initially, the larva takes in the present in the soil and then comes to the root. The larva attack may eliminate the entire plant.
Control: The plant with good resistance power can overcome the bug. For heavy attack, insecticides with parts carbosulfan and carbofuran can be utilized to kill the insect.
Army worm: Spodoptera litura presence can be identified by biting in the leaves. The extreme infection might entirely kill the plants.
Control: Insecticides are used to control the bugs.
Grasshopper: This prevails bug discovered in several plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The pest typically assaults 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 pest damages the Jatropha stem and it is extensively seen in Indonesia. The stem assaulted by this insect usually drop. The presence can be determined by the larva penetration hole at the stem.
Control: The Insecticide usually used to manage this pest is carbofuran.
Pest of leaf: The typical bugs observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This pest can eat all the leaves of the plant simply put period. The quality and yield of the seeds get lowered due to the heavy attack.
Control: This can be managed by picking the old larvae around the surface and tossing away the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning experience when permitted to exposure to skin as it produces particular chemical substance. Initially the bug crowded in the leaf and after that spread out all over the plant when it grows older.
Control: Manually, the pest can be killed just 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 areas. The pest targets the leaf and sucks all the nutrients of the leaf and gets curls at the tip. Later, the entire leaf dry and pass away.
Control: The heavy attack can be controlled by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite likewise assaults the leaf and makes the whole plant weak. The insect existence can be identified when the leaf become yellow-colored, shrinks, turns red and drop. The insect can also be spread out through fallen leaves.
Control: Some preventive procedures can be simulated correct 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 pest which assaults the plant throughout blossom period so the crop yield completely drops. This bug is seen around the tropical area.
The harmful enzyme in the plant shrinks the entire plant.
Control: Insecticides recommended for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The insects typically takes place attacks the plant in flowering season and this insect 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 pointers.
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
Therese Hennessy edited this page 2025-01-18 03:32:21 +08:00