Virus layu tomat

Class: Virus
Common Name: Virus layu tomat
Scientific Name: Tomato Spotted Wilt Virus
Potential Host:

Tobacco, peanut, tomato, pepper, potato, eggplant, lettuce, endive, celery, bean, cowpea, spinach, cucumber, cauliflower, and many more

Who Am I?

Tomato spotted wilt virus (TSWV) is from the tospoviruses genus and is common worldwide due to the spread of its main vector, the western flower thrips. The infection results in spotting and wilting of the infected crop, reduced yield, and in a later stage it will lead to death of the plant. Early symptoms show on the stems and leaves, while symptoms upon fruits appear at a later stage. Foliage and stems: appearance of circular stains of about 5.0 cm in diameter and quickly become necrosis. Fruits: round halo-like and sometimes spiral spots. When plant is fully infected then the leaves have all over chlorosis with formations of necrotic spots and delayed development.

The virus is transmitted by thrips (mainly the western flowers thrips), and it is not seedborne. There are a large number of hosts, such as weeds, that allow the virus to remain present even after the contaminated crop was harvested. This can cause the weeds to contaminate crops the following season and makes disease control difficult.

Control Measures

Tanaman yang terinfeksi oleh virus tidak terdapat perlakuan khusus dan tidak dapat disembuhkan. Oleh karena itu, jika terdapat beberapa tanaman yg terinfeksi oleh virus, tanaman tersebut harus segera dibuang/dicabut dari area penanaman.

Tanaman atau bibit yang tahan terhadap penyakit merupakan syarat penting dalam budidaya.

Jaringan dalam tanaman, jaringan tanaman harus tertutup dan hindarkan luka atau lubang pada bagian tanaman.

Kebersihan area penanaman adalah hal terpenting, hindarkan tanaman dari gulma, sisa-sisa tanaman, bagian tanaman yang rusak, pertumbuhan tanaman yang tidak di ingginkan dan tanaman lain yang bukan merupakan tanaman utama budidaya.

Alat pemantauan hama (perangkap) sangat penting untuk mengetahui sebaran populasi dari hama.

Pencegahan serangan thrips secara dengan menggunakan insektisida secara effective dan tepat sasaran sangat sulit. Disisi lain hindari penggunaan insektisida seperti organofosfat, karbamat dan piretroid. Hal ini dikarenakan akan menghilangkan populasi dari musuh alami dan organisme yang berfungsi sebagai penyerbukan alami. Dan bersifat sebaliknya tidak akan mempengaruhi tingkat populasi serangan dari thrips.

spinosad produk berbasis.

musuh alami yang tersedia untuk mengendalikan thrips dan berasal dari genu orius

Caution and careful notice should be taken when using any plant protection products (insecticides, fungicides, and herbicides). It is the grower’s sole responsibility to keep track of the legal uses and permissions with respect to the laws in their country and destination markets. Always read the instructions written on labels, and in a case of contradiction, work in accordance to the product label. Keep in mind that information written on the label usually applies to local markets. Pest control products intended for organic farming are generally considered to be less effective in comparison to conventional products. When dealing with organic, biologic, and to some extent a small number of conventional chemical products, a complete eradication of a pest or disease will often require several iterations of a specific treatment or combination of treatments.

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