Jatropha jatropha curcas is getting significance commercially as the need of nonrenewable fuel sources increases enormously and likewise Jatropha is an environmentally friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel replacement and it is likewise very economical compared to other fuels. Recently, jatropha curcas is dealing with some trouble with insects and illness. The pests are categorized into 2 varieties: Pest that impact young plants and Pest that impact grown plants.
Young plant insects: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is commonly referred to as 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 diminished the plant entirely.
Control: This pest can be managed by selecting the larva found around the plants or by mixing the bran, sawdust with insecticides.
Scarabaeid Beetle: This pest damages the root of the young plant. Initially, the larva takes in the organic matters present in the soil and after that pertains to the root. The larva attack might eliminate the entire plant.
Control: The plant with excellent resistance power can get rid of the bug. For heavy attack, insecticides with elements carbosulfan and carbofuran can be used to eliminate the insect.
Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The serious infection could completely kill the plants.
Control: Insecticides are used to control the insects.
Grasshopper: This is common pest found in a number of plants. Valanga nigricornis and Locusta migratoria extensively attacks the plant. The bug 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 bug damages the Jatropha stem and it is extensively seen in Indonesia. The stem assaulted by this pest usually fall down. The presence can be identified by the larva penetration hole at the stem.
Control: The Insecticide normally utilized to control this bug is carbofuran.
Pest of leaf: The typical insects 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 period. The quality and yield of the seeds get lowered due to the heavy attack.
Control: This can be controlled by selecting the old larvae around the surface area and discarding the assaulted leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning experience when allowed to contact with skin as it produces specific chemical compound. Initially the bug crowded in the leaf and after that spread all over the plant when it grows older.
Control: Manually, the pest can be killed only by it in water or kerosene. The heavy attack can be controlled by spraying organophosphate insecticides.
Leaf Hopper: This bug is found primarily in tropical and subtropical regions. The pest targets the leaf and sucks 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 managed by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite likewise attacks the leaf and makes the entire plant weak. The insect existence can be determined when the leaf ended up being yellow-colored, shrinks, turns red and fall down. The bug can likewise be spread out through fallen leaves.
Control: Some preventive steps can be done like correct sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.
Some awful insect which attacks 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 throughout blossom period so the crop yield entirely falls down. This bug is seen around the tropical region.
The toxic enzyme in the plant diminishes the entire plant.
Control: Insecticides recommended for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The insects frequently occurs attacks the plant in blooming season and this insect 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 ideas.
Control: Manually, the attacked seeds are advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.
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Pests Of Jatropha
Fallon Moen edited this page 2025-01-12 02:41:51 +08:00