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Corn Earworm (Helicoverpa zea)

Corn Earworm (Helicoverpa zea)

(798 words)
December 6, 2025

The corn earworm, a species belonging to the family Noctuidae of the order Lepidoptera, causes significant economic losses in corn cultivation important through its feeding activity road harmful. Adult individuals have forewings that are milky brown, camel-colored, or yellowish-beige, while their hindwings are silvery white or silky white. In males, the antennae are comb-like in structure. Eggs are laid in large numbers, in flat-cylindrical shapes and in clusters. When first laid, the eggs are p

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Nur Dursun

Nur Dursun

Ambassador

Ambassador

(1317 words)
December 11, 2025

Sapphire is a precious gemstone mineralogically belonging to the corundum (aluminum oxide, Al₂O₃) group and is particularly renowned for its blue tones. However, only sapphires are not only blue; they can also be found in yellow, pink, green, black and colorless like varieties. Corundums with a red color are not called sapphires but rubies. The word “sapphire” derives from the Latin “sapphirus” and Greek “sappheiros,” likely originating from ancient confusion with blue stones (particularly lapis

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Seray Bayraktar

Seray Bayraktar

Ambassador

Ambassador

(1294 words)
July 21, 2026

Sapphire is a precious gemstone belonging to the corundum (aluminum oxide, Al₂O₃) mineral group and is particularly known for its blue tones. However, it is not only blue but also occurs in many different colors including yellow, pink, green, purple, and colorless. Corundums with a red color are not called sapphire but ruby. The word “sapphire” derives from the Latin “sapphirus” and Greek “sappheiros,” likely originating from ancient confusion with blue stones (particularly lapis lazuli). Throug

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Seray Bayraktar

Seray Bayraktar