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Pests Of Jatropha
Jatropha Curcas is gaining value commercially as the need of nonrenewable fuel sources increases tremendously and also Jatropha is an eco-friendly energy plantation. Plantation of this plant is thought about to be an outstanding fuel alternative and it is also really affordable compared to other fuels. Recently, Jatropha is facing some trouble with and illness. The pests are categorized into two varieties: Pest that impact young plants and Pest that impact matured plants.
Young plant pests: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically called Cut worm. This pest impacts 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 insect can be managed by selecting the larva discovered 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 takes in the raw materials present in the soil and then pertains to the root. The larva attack may eliminate the entire plant.
Control: The plant with excellent resistance power can get rid of the bug. For heavy attack, insecticides with parts carbosulfan and carbofuran can be utilized to eliminate the pest.
Army worm: Spodoptera litura existence can be identified by biting in the leaves. The serious infection might entirely eliminate the plants.
Control: Insecticides are utilized to control the pests.
Grasshopper: This prevails bug discovered in several plants. Valanga nigricornis and Locusta migratoria commonly assaults the plant. The bug typically attacks the young plant.
Control: The insecticides used 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 stem and it is widely seen in Indonesia. The stem attacked by this insect typically fall down. The existence can be identified by the larva penetration hole at the stem.
Control: The Insecticide typically utilized to manage this pest 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 consume all the leaves of the plant in short duration. The quality and yield of the seeds get minimized due to the heavy attack.
Control: This can be controlled by selecting the old larvae around the surface area and getting rid of the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spines and produces a burning feeling when enabled to call with skin as it produces specific chemical compound. Initially the bug crowded in the leaf and then spread all over the plant when it ages.
Control: Manually, the insect 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 found mostly in tropical and subtropical areas. The insect targets the leaf and draws all the nutrients of the leaf and gets curls at the pointer. Later, the whole leaf dry and pass away.
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 pest existence can be determined when the leaf ended up being yellow-colored, shrinks, turns red and fall down. The bug can also be spread out through fallen leaves.
Control: Some preventive measures can be done like correct sanitation and burning the fallen leaves. Heavy attack can be treated by spraying insecticides.
Some terrible insect which assaults flower and fruit are, Stink bug (Nezara viridula)
Chrysocoris javanus, Tip borer caterpillar.
Stink Bug: Sting bug is a major bug which attacks the plant during bloom period so the crop yield totally drops. This pest is seen around the tropical region.
The poisonous enzyme in the plant diminishes 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 flowering 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 ideas.
Control: Manually, the attacked seeds are recommended to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.