Jatropha Curcas is acquiring significance commercially as the demand of nonrenewable fuel sources increases enormously and also Jatropha is an environmentally friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel replacement and it is likewise extremely cost-effective compared to other fuels. Recently, Jatropha is dealing with some difficulty with pests and illness. The insects are classified into two ranges: Pest that affect young plants and Pest that impact grown plants.
Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically called Cut worm. This pest affects the seedlings and young Jatropha plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface area and this will shrunk the plant entirely.
Control: This pest 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 then concerns the root. The larva attack may kill the entire plant.
Control: The plant with excellent resistance power can get rid of the bug. For heavy attack, insecticides with components carbosulfan and carbofuran can be used to kill the pest.
Army worm: Spodoptera litura presence can be determined by biting in the leaves. The severe infection could completely kill the plants.
Control: Insecticides are used to manage the insects.
Grasshopper: This is common insect found in numerous plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The insect often attacks the young plant.
Control: The insecticides utilized betacyfluthrin, cypermethrin, thiodicarb, MIPC, and fipronil.
Pest observed in fully grown 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 insect typically drop. The presence can be determined by the larva penetration hole at the stem.
Control: The Insecticide typically used to control this pest is carbofuran.
Pest of leaf: The common insects observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This bug can consume all the leaves of the plant in short duration. The quality and yield of the seeds get decreased due to the heavy attack.
Control: This can be controlled by choosing 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 allowed to exposure to skin as it produces certain chemical substance. Initially the insect crowded in the leaf and after that spread out all over the plant when it grows older.
Control: Manually, the insect 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 mostly in tropical and subtropical regions. The insect targets the leaf and sucks all the nutrients of the leaf and gets curls at the tip. 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 assaults the leaf and makes the entire plant weak. The pest presence can be determined when the leaf become yellow-colored, shrinks, reddens and drop. The pest can also be spread through fallen leaves.
Control: Some preventive steps can be simulated correct sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.
Some awful bug which assaults flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a serious bug which attacks the plant throughout blossom duration so the crop yield completely falls down. This bug is seen around the tropical region.
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 pests typically happens attacks the plant in blooming season and this insect is seen commonly in tropical areas. The laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant ideas.
Control: Manually, the assaulted seeds are recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.
1
Pests Of Jatropha
Jere Threatt edited this page 2025-01-18 01:18:55 +01:00