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Pests Of Jatropha
Jatropha Curcas is acquiring value commercially as the need of fossil fuels increases significantly and likewise Jatropha is an eco-friendly energy plantation. Plantation of this plant is considered to be an exceptional fuel alternative and it is likewise very cost-effective compared to other fuels. Recently, Jatropha is dealing with some problem with pests and diseases. The pests are categorized into 2 ranges: Pest that affect young plants and Pest that impact matured plants.
Young plant bugs: Cutworm, Scarabeid Beetle, Army worm, Grasshopper.
Agrotis ipsilon: It is typically called Cut worm. This bug 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 shrunk the plant entirely.
Control: This pest can be managed by picking the larva discovered around the plants or by blending the bran, sawdust with insecticides.
Scarabaeid Beetle: This pest 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 might kill the entire plant.
Control: The plant with good resistance power can overcome the insect. For heavy attack, insecticides with components carbosulfan and carbofuran can be utilized to the pest.
Army worm: Spodoptera litura presence can be recognized by biting in the leaves. The extreme infection might totally eliminate the plants.
Control: Insecticides are used to manage the pests.
Grasshopper: This is common bug discovered in several plants. Valanga nigricornis and Locusta migratoria widely assaults the plant. The bug frequently 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 insect harms the Jatropha stem and it is commonly seen in Indonesia. The stem attacked by this bug generally fall down. The existence can be recognized by the larva penetration hole at the stem.
Control: The Insecticide generally 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 insect can eat all the leaves of the plant in other words duration. The quality and yield of the seeds get decreased due to the heavy attack.
Control: This can be managed by choosing the old larvae around the surface and discarding the attacked leaves.
Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning experience when permitted to exposure to skin as it produces particular chemical compound. Initially the insect crowded in the leaf and then spread out all over the plant when it grows older.
Control: Manually, the pest can be killed only by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.
Leaf Hopper: This insect is found mainly in tropical and subtropical regions. The insect targets the leaf and sucks all the nutrients of the leaf and gets curls at the suggestion. Later, the entire leaf dry and pass away.
Control: The heavy attack can be controlled by utilizing insecticides like imidachloprid, beta cyfluthrin or carbosulfan.
Mite: Mite likewise attacks the leaf and makes the entire plant weak. The bug existence can be recognized when the leaf ended up being yellowish, shrinks, reddens and fall down. The insect 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 dealt with 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 assaults the plant during blossom period so the crop yield completely falls down. This insect is seen around the tropical area.
The poisonous enzyme in the plant diminishes the whole plant.
Control: Insecticides advised for this insect is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.
Tip borer caterpillar: The insects typically occurs attacks the plant in blooming season and this insect is seen widely in tropical regions. The female insect laid the eggs on the tender part of the plant and the young larvae feed the young fruits and plant tips.
Control: Manually, the assaulted seeds are advised to burn. The insecticides like monocrotophos and bensultap are sprayed at the flowering season.