Jatropha jatropha curcas is acquiring importance commercially as the demand of nonrenewable fuel sources increases enormously and also Jatropha is an environment-friendly energy plantation. Plantation of this plant is thought about to be an exceptional fuel substitute and it is also extremely cost-effective compared to other fuels. Recently, jatropha curcas is facing some difficulty with bugs and illness. The bugs are categorized into 2 varieties: Pest that affect young plants and Pest that affect developed plants.
Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically referred to as Cut worm. This pest 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 managed by picking the larva found around the plants or by blending the bran, sawdust with insecticides.
Scarabaeid Beetle: This pest damages the root of the young plant. Initially, the larva consumes the organic matters present in the soil and then comes to the root. The larva attack might 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 kill the pest.
Army worm: Spodoptera litura presence can be determined by biting in the leaves. The extreme infection might completely kill the plants.
Control: Insecticides are used to manage the bugs.
Grasshopper: This prevails bug found in several plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The insect typically assaults 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 insect damages the Jatropha stem and it is extensively seen in Indonesia. The stem assaulted by this pest usually fall down. The presence can be determined by the larva penetration hole at the stem.
Control: The Insecticide typically utilized to control 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 bug can eat all the leaves of the plant in other words period. The quality and yield of the seeds get minimized due to the heavy attack.
Control: This can be controlled by picking the old larvae around the surface area and getting rid of the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning feeling when permitted to exposure to skin as it produces certain chemical compound. Initially the pest crowded in the leaf and after that spread out all over the plant when it gets older.
Control: Manually, the pest can be eliminated just by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.
Leaf Hopper: This insect 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 tip. Later, the entire leaf dry and die.
Control: The heavy attack can be managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite also assaults the leaf and makes the entire plant weak. The pest existence can be identified when the leaf ended up being yellowish, diminishes, turns red and drop. The bug can likewise be spread out through fallen leaves.
Control: Some preventive measures can be done like appropriate sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.
Some dreadful insect which assaults flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a major pest which assaults the plant during blossom period so the crop yield entirely drops. This insect is seen around the tropical area.
The poisonous enzyme in the plant shrinks the entire plant.
Control: Insecticides suggested for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The takes place attacks the plant in blooming season and this insect is seen commonly 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 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
Nelle Francisco edited this page 5 days ago