Jatropha Curcas is gaining significance commercially as the need of nonrenewable fuel sources significantly and likewise jatropha curcas is an environment-friendly energy plantation. Plantation of this plant is considered to be an outstanding fuel substitute and it is also extremely affordable compared to other fuels. Recently, Jatropha is dealing with some trouble with pests and diseases. The bugs are classified into two ranges: Pest that impact young plants and Pest that affect grown plants.
Young plant pests: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is commonly known as Cut worm. This insect impacts the seedlings and young jatropha curcas 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 selecting the larva found around the plants or by mixing the bran, sawdust with insecticides.
Scarabaeid Beetle: This insect destroys the root of the young plant. Initially, the larva takes in the raw materials present in the soil and after that concerns the root. The larva attack might kill the entire plant.
Control: The plant with great resistance power can get rid of the insect. For heavy attack, insecticides with parts carbosulfan and carbofuran can be used to eliminate the pest.
Army worm: Spodoptera litura presence can be determined by biting in the leaves. The extreme infection might completely eliminate the plants.
Control: Insecticides are utilized to manage the insects.
Grasshopper: This prevails pest discovered in several plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The insect 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 insect harms the jatropha curcas stem and it is commonly seen in Indonesia. The stem attacked by this insect 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 common 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 in short period. The quality and yield of the seeds get lowered due to the heavy attack.
Control: This can be controlled by picking the old larvae around the surface and getting rid of 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 certain chemical substance. Initially the insect crowded in the leaf and after that spread all over the plant when it grows older.
Control: Manually, the bug can be eliminated only 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 pest targets the leaf and draws all the nutrients of the leaf and gets curls at the tip. Later, the whole leaf dry and pass away.
Control: The heavy attack can be managed by using insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite also assaults the leaf and makes the entire plant weak. The pest existence can be determined when the leaf become yellowish, diminishes, reddens and drop. The bug can also be spread through fallen leaves.
Control: Some preventive measures can be simulated proper sanitation and burning the fallen leaves. Heavy attack can be dealt with 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 major pest which assaults the plant during bloom period so the crop yield entirely falls down. This insect is seen around the tropical area.
The harmful enzyme in the plant diminishes the entire plant.
Control: Insecticides advised for this bug is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The insects typically occurs attacks the plant in blooming season and this bug is seen widely 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 ideas.
Control: Manually, the attacked seeds are advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.
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Pests Of Jatropha
Kirsten Wynne edited this page 2025-01-18 05:58:18 +08:00