Jatropha Curcas is gaining importance commercially as the need of nonrenewable fuel sources increases significantly and likewise Jatropha is an eco-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel substitute and it is likewise very economical compared to other fuels. Recently, Jatropha is dealing with some problem with pests and illness. The insects are classified into two varieties: Pest that impact young plants and Pest that affect developed plants.
Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is commonly referred to as Cut worm. This insect affects the seedlings and young Jatropha plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface and this will diminished the plant entirely.
Control: This pest can be controlled by picking the larva found 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 natural matters present in the soil and after that concerns the root. The larva attack may eliminate the whole plant.
Control: The plant with great resistance power can overcome the pest. For heavy attack, insecticides with parts carbosulfan and carbofuran can be utilized to kill the insect.
Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The severe infection might entirely kill the plants.
Control: Insecticides are utilized to control the insects.
Grasshopper: This prevails pest found in a number of plants. Valanga nigricornis and Locusta migratoria commonly attacks the plant. The pest frequently attacks the young plant.
Control: The insecticides utilized 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 stem and it is commonly seen in Indonesia. The stem attacked by this pest usually drop. The presence can be identified by the larva penetration hole at the stem.
Control: The Insecticide generally utilized to manage this pest 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 eat all the leaves of the plant simply put duration. The quality and yield of the seeds get reduced due to the heavy attack.
Control: This can be controlled by picking the old larvae around the surface and discarding the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning sensation when permitted to exposure to skin as it produces certain chemical substance. Initially the pest crowded in the leaf and then spread 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 found primarily in tropical and subtropical areas. The bug 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 using insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite also attacks the leaf and makes the entire plant weak. The pest presence can be determined when the leaf ended up being yellow-colored, diminishes, turns red and drop. The bug can likewise be spread out through fallen leaves.
Control: Some preventive steps can be done like appropriate sanitation and burning the . Heavy attack can be dealt with 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 assaults the plant throughout blossom duration so the crop yield completely falls down. This insect is seen around the tropical area.
The poisonous enzyme in the plant shrinks the entire plant.
Control: Insecticides suggested for this pest is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The pests commonly happens attacks the plant in blooming season and this bug is seen widely in tropical regions. 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 flowering season.
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Pests Of Jatropha
horacemacalist edited this page 2025-01-11 20:52:29 +00:00