Pests Of Jatropha

Jatropha jatropha curcas is gaining value commercially as the need of nonrenewable fuel sources increases enormously and also Jatropha is an environmentally friendly energy plantation. Plantation of this plant is considered to be an outstanding fuel alternative and it is also extremely affordable compared to other fuels. Recently, jatropha curcas is dealing with some problem with bugs and diseases. The bugs are classified into 2 ranges: 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 called Cut worm. This pest affects 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 controlled by picking the larva found around the plants or by mixing the bran, sawdust with insecticides.

Scarabaeid Beetle: This the root of the young plant. Initially, the larva takes in the organic matters present in the soil and then concerns the root. The larva attack might eliminate the whole plant.

Control: The plant with good resistance power can conquer the pest. For heavy attack, insecticides with components carbosulfan and carbofuran can be used to eliminate the insect.

Army worm: Spodoptera litura existence can be recognized by biting in the leaves. The extreme infection might entirely kill the plants.

Control: Insecticides are used to control the pests.

Grasshopper: This prevails bug found in a number of plants. Valanga nigricornis and Locusta migratoria extensively assaults the plant. The pest frequently assaults 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 bug harms the Jatropha stem and it is widely seen in Indonesia. The stem attacked by this bug usually drop. The existence can be recognized by the larva penetration hole at the stem.

Control: The Insecticide normally used to control this insect is carbofuran.

Pest of leaf: The typical pests observed are leaf caterpillar, Neetle caterpillar, Leaf hopper, Mite, Ear corn caterpillar.

Leaf Caterpillar: This pest can eat 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 managed by choosing the old larvae around the surface and tossing away the attacked leaves.

Needle Caterpillar: This caterpillar is covered with spinal columns and produces a burning sensation when allowed to contact with skin as it produces specific chemical substance. Initially the insect crowded in the leaf and after that spread all over the plant when it ages.

Control: Manually, the insect can be killed only by soaking it in water or kerosene. The heavy attack can be managed by spraying organophosphate insecticides.

Leaf Hopper: This pest 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 pass away.

Control: The heavy attack can be controlled by using insecticides like imidachloprid, beta cyfluthrin or carbosulfan.

Mite: Mite likewise attacks the leaf and makes the whole plant weak. The insect presence can be identified when the leaf ended up being yellow-colored, shrinks, reddens and drop. The bug can also be spread through fallen leaves.

Control: Some preventive measures can be simulated 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 severe pest which attacks the plant during bloom period so the crop yield totally drops. This insect is seen around the tropical area.

The harmful enzyme in the plant shrinks the entire plant.

Control: Insecticides suggested for this bug is chlorfluazuron, diflubenzuron, alfamethrin, and lamda cyhalothrin.

Tip borer caterpillar: The bugs frequently takes place attacks the plant in flowering season and this insect 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 tips.

Control: Manually, the attacked seeds are suggested to burn. The insecticides like monocrotophos and bensultap are sprayed at the blooming season.