Kapas ki fasal k shuru main ras chusnay waly keedon ka hamla or control |Cotton Jassid| کپاس | کیڑے
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- čas přidán 26. 08. 2024
- Amrasca biguttula, commonly known as the cotton jassid, is a subspecies of leafhopper belonging to the subfamily Typhlocybinae of family Cicadellidae. It is a pest of cotton, okra, and other crops in southern Asia and West Africa
Thrips are tiny, slender insects less than 0.06 inch (1.55 mm) long. Western flower thrips are by far the most common thrips on cotton and may be found all season. They are light colored; adults have clear, slender wings. The bean thrips occasionally appears on cotton in summer, usually at field edges.
Whitefly: Bemisia tabaci (Aleyrodidae: Hemiptera)
Symptom of damage. Appearance of chlorotic spots on the leaves and upward curling of leaves. Leaves become reddish, brittle. Premature leaf dropping, boll bursting and poor quality lint due to honey dew secretion.
The primary pest thrips belong to the genus Frankliniella. These are the tobacco thrips [F. fusca (Hinds)], western flower thrips [F. occidentalis (Pergande)], and flower thrips [F. tritici (Fitch)]. Other species such as the onion thtips (Thrips tabaci Lindeman) occur incidentally.
Thrips are a pest of seedling cotton. They feed on the terminal tissues and can be particularly damaging when temperatures are cool. Thrips have “punch and suck” mouthparts that allow them to punch a hole in a leaf cell, insert their maxillary stylets, and suck up the cellular fluids. The ultimate impact of thrips injury on yield is highly variable. Cotton that is planted under good growing conditions can withstand relatively heavy infestations without suffering yield loss.
rips (Thysanoptera: Thripidae) are the most consistent and predictable insect pests of Upland cotton, Gossypium hirsutum L., in South Carolina and much of the southeastern United States. These small insects have piercing-sucking and rasping mouthparts and feed on almost all portions of the cotton plant, with the most significant injury occurring on seedlings (plant emergence to five true leaves).1,2 Excessive feeding injury can produce severely stunted plants (figure 1), often resulting in loss of yield or, at least, a delay in crop maturity. The predominant species infesting and causing injury to seedling cotton in the Southeast is the tobacco thrips, Frankliniella fusca (Hinds) (figure 2), as it readily reproduces on and colonizes the crop, but other species of less importance a
تمام فصلوں کے رس چوسنے والے کیڑے
مربوط طریقہ انسداد کے تحت کیڑوں کو مکمل تلف کرنے کے بجائے نقصان کی معاشی حد سے نیچے رکھا جائے۔ ترجمان محکمہ زراعت پنجاب نے کہا ہے کہ حشرات کو کنٹرول کرنے کے لیے زہروں پر بہت زیادہ انحصار ایسے مسائل پیداکرتے ہیں جن میں پیداوار، صحت اور ماحولیاتی آلودگی شامل ہیں۔ ان مسائل کو کم کرنے کے لیے کاشتکارکیڑوں کے انسداد کے لیے خاص قسم کی تدابیر اختیار کریں۔مربوط طریقہ انسداد کے تحت کیڑوں کو مکمل تلف کرنے کے بجائے انہیں صرف نقصان کی معاشی حد سے نیچے رکھا جائے۔غیر کیمیائی طریقہ انسداد پر ممکنہ حد تک انحصار کر کے حشرات کو نقصان کی حد سے نیچے رکھا جائے۔حشرات کش ادویات کو صرف اس وقت استعمال کیا جائے جب ان کی ضرورت ہ