Iha Education June Webinar - Syngenta - Chemicals

Explanation
Whiteflies can be distinguished based on their wing shape. Different species of whiteflies have different wing shapes, which can vary in size, texture, and pattern. By observing the wing shape, entomologists and researchers can identify and classify different forms of whiteflies. This characteristic is an important factor in understanding the biology, behavior, and ecological role of various whitefly species.

Explanation
Avid and Judo have shown activity on Whiteflies. This means that these two miticides have been proven to be effective in controlling or eliminating whiteflies. Floramite, on the other hand, may not have shown the same level of activity on whiteflies. Therefore, the correct answer is A & C, which means Avid and Judo have shown activity on whiteflies.

Explanation
Erwinia carotovora is the most likely cause for root cutting within the first seven days. Erwinia carotovora is a bacterial pathogen that causes soft rot disease in plants, including root rot. It infects the roots and causes them to decay, leading to root cutting. Water deficiency, Thielaviopsis basicola, and Pepsicola versus cocacola are not associated with root cutting in the given context.

Explanation
Flagship belongs to class A4 MoA insecticide because it is mentioned alongside Orthene and Duraguard, which are also listed as options. Therefore, since all three products are mentioned, it can be inferred that all of them belong to class A4 MoA insecticide.

Explanation
Botrytis cinerea is a fungal pathogen that causes V shaped lesions with a yellow margin at the leaf edge. This fungus is commonly known as gray mold and it affects a wide range of plants, causing decay and rot. The V shaped lesions with a yellow margin are characteristic symptoms of Botrytis cinerea infection, making it the correct answer to the question. Xanthomonas and powdery mildew are other plant pathogens that cause different symptoms and are not associated with the specific V shaped lesions described in the question.

Explanation
The Lewis mite feeding injury resembles a nutrition deficiency because these mites feed on plant sap, which can result in yellowing and discoloration of the leaves. This can be mistaken for a nutrition deficiency because the plant may not be receiving the necessary nutrients from the damaged leaves.

Explanation
Scab is a disease that causes a rapid elongation of the infected stem. This disease is characterized by the formation of rough, scaly lesions on the surface of the stem, which can lead to the stem becoming elongated. Scab is caused by various pathogens, including fungi and bacteria, and it can affect a wide range of plants. The rapid elongation of the infected stem is one of the symptoms of scab, making it the correct answer to the question.

Explanation
Alternaria alternata is a common leaf spot disease on Poinsettia. It is caused by a fungus that infects the leaves, resulting in dark brown to black spots with a concentric ring pattern. This disease is characterized by the presence of spores on the leaf surface and can spread rapidly in humid conditions. Cercospora leaf spot is another common leaf spot disease on Poinsettia, caused by a different fungus. Collectotrichum capsici is not typically associated with leaf spot disease on Poinsettia. Therefore, the correct answer is Alternaria alternata, as it is a common leaf spot disease on Poinsettia.

Explanation
Fungus gnats cause the most damage to young cuttings. This is because the larvae of fungus gnats feed on the roots of plants, which can lead to stunted growth, root rot, and even death. Young cuttings have delicate and vulnerable root systems, making them an ideal target for these pests. Additionally, the presence of fungus gnats can also attract other harmful insects and diseases, further exacerbating the damage caused to the young cuttings.

Explanation
In 2010, Syngenta will launch the product Palladium to control Botrytis and Powdery Mildew.