Jatropha Curcas is acquiring significance commercially as the demand of nonrenewable fuel sources increases enormously and likewise Jatropha is an environment-friendly energy plantation. Plantation of this plant is thought about to be an excellent fuel substitute and it is also really affordable compared to other fuels. Recently, jatropha curcas is facing some problem with bugs and diseases. The insects are categorized into two varieties: Pest that affect young plants and Pest that impact matured plants.
Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically known as Cut worm. This bug affects the seedlings and young Jatropha plants. If the plant is impacted by the cutworm, the stem gets cut nearer to the soil surface area and this will diminished the plant totally.
Control: This bug can be managed by selecting the larva found around the plants or by mixing the bran, sawdust with insecticides.
Scarabaeid Beetle: This insect damages the root of the young plant. Initially, the larva takes in the raw materials present in the soil and then concerns the root. The larva attack may eliminate the whole plant.
Control: The plant with excellent resistance power can conquer the bug. For heavy attack, insecticides with components carbosulfan and carbofuran can be used to kill the insect.
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 control the pests.
Grasshopper: This is common bug discovered in numerous plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The bug 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 pest harms the jatropha curcas stem and it is extensively seen in Indonesia. The stem attacked by this insect normally fall down. The existence can be determined by the larva penetration hole at the stem.
Control: The Insecticide usually utilized to control this insect is carbofuran.
Pest of leaf: The common pests observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.
Leaf Caterpillar: This pest can consume 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 area and tossing away the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning sensation when permitted to call with 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 gets older.
Control: Manually, the pest can be eliminated only by soaking it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.
Leaf Hopper: This pest is discovered mostly in tropical and subtropical areas. The bug targets the leaf and sucks all the nutrients of the leaf and gets curls at the pointer. Later, the entire leaf dry and pass away.
Control: The heavy attack can be managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite likewise assaults the leaf and makes the entire plant weak. The pest presence can be determined when the leaf become yellowish, shrinks, reddens and drop. The insect can also be spread through fallen leaves.
Control: Some can be simulated proper sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.
Some dreadful pest which assaults flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a major pest which attacks the plant throughout bloom duration so the crop yield totally drops. This insect is seen around the tropical region.
The poisonous enzyme in the plant diminishes the whole plant.
Control: Insecticides recommended for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The insects typically happens attacks the plant in blooming season and this bug is seen commonly in tropical regions. The female pest 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 blooming season.
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Pests Of Jatropha
Hermine Osburn edited this page 2025-01-11 20:46:05 +08:00