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For these reasons SCNs is a very economically devastating pest. SCNs cause up to $1.3 billion in annual losses due to their resilience and persistence in the soil. In addition, SCNs can cause yield losses that exceed 30%. [11] Soybean cyst nematodes can easily be prevented by thoroughly cleaning farm equipment to prevent introduction to the ...
Soybean rust is a disease that affects soybeans and other legumes.It is caused by two types of fungi, Phakopsora pachyrhizi, commonly known as Asian soybean rust, and Phakopsora meibomiae, commonly known as New World soybean rust.
A common cause of variegation is the masking of green pigment by other pigments, such as anthocyanins. This often extends to the whole leaf, causing it to be reddish or purplish. On some plants however, consistent zonal markings occur; such as on some clovers, bromeliads, certain Pelargonium and Oxalis species.
Bacterial wilt of cucurbits is cause by the bacteria Erwinia tracheiphila, it affects cucumber, squash, muskmelon, pumpkin, gourds; [3] certain varieties of cucumber and squash have different degrees of resistance. Once a plant is infected, the bacteria spread through the xylem vessels from the area of infection to the main stem, and the entire ...
Lavandula (common name lavender) is a genus of 47 known species of perennial flowering plants in the mints family, Lamiaceae. [1] It is native to the Old World, primarily found across the drier, warmer regions of mainland Eurasia, with an affinity for maritime breezes.
The flower heads are 3–5 cm (1 + 1 ⁄ 4 –2 in) wide, [5] and usually light blue [6] or lavender; it has also rarely been described as white or pink. [5] Of the two rows of involucral bracts, the inner is longer and erect, the outer is shorter and spreading. It flowers from March until October. [6] The seed has small scales at the tip. [6]
The bird flu outbreak has taken concerning turns, with more than 60 human cases confirmed. Experts outlined four signs that the virus is going in the wrong direction.
The virus specifically targets carrots, parsnips, and cilantro but only effects carrot as this is the only host for the vector. This virus alone does not cause symptoms in carrots, but in connection with Carrot red leaf virus (CRLV) causes yellowing, reddening of leaves and yield loss.