Jatropha Curcas is getting value commercially as the demand of nonrenewable fuel sources increases tremendously and likewise Jatropha is an environment-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel replacement and it is also very cost-effective compared to other fuels. Recently, jatropha curcas is dealing with some trouble with bugs and diseases. The pests are categorized into two varieties: Pest that impact young plants and Pest that affect developed plants.
Young plant pests: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically referred to as Cut worm. This insect affects the seedlings and young Jatropha plants. If the plant is affected by the cutworm, the stem gets cut nearer to the soil surface and this will diminished the plant entirely.
Control: This insect can be managed by choosing the larva found around the plants or by blending the bran, sawdust with insecticides.
Scarabaeid Beetle: This insect destroys the root of the young plant. Initially, the larva consumes the natural matters present in the soil and then pertains to the root. The larva attack may kill the entire plant.
Control: The plant with great resistance power can overcome the bug. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to eliminate the bug.
Army worm: Spodoptera litura presence can be identified by biting in the leaves. The extreme infection could totally eliminate the plants.
Control: Insecticides are utilized to manage the bugs.
Grasshopper: This prevails pest found in numerous plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The pest typically assaults 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 pest harms the Jatropha stem and it is extensively seen in Indonesia. The stem assaulted by this pest generally fall down. The existence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide usually utilized to manage this insect is carbofuran.
Pest of leaf: The typical 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 short period. The quality and yield of the seeds get minimized due to the heavy attack.
Control: This can be managed by picking the old larvae around the surface area and tossing away the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when allowed to call with skin as it produces particular chemical substance. Initially the insect crowded in the leaf and after that spread all over the plant when it gets older.
Control: Manually, the bug 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 mostly in tropical and subtropical areas. The bug targets the leaf and draws 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 likewise assaults the leaf and makes the entire plant weak. The insect existence can be identified when the leaf become yellowish, diminishes, reddens and drop. The pest can likewise be spread through fallen leaves.
Control: Some preventive procedures can be done like proper sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.
Some awful bug which attacks flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a serious pest which assaults the plant during blossom period so the crop yield totally drops. This insect is seen around the tropical region.
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 extensively in tropical areas. 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 attacked seeds are recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the .
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Pests Of Jatropha
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