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"petiole" - 1 õppematerjal

Sunflower
31
doc

Sunflower

Banded sunflower moth Moth has brown area mid-wing (.5 in.). Larvae are not Cochylis hospes dark striped, smaller than head moth. Makes a small hole in top of seed, feeds on meat. Sunflower bud moth Dark grey moth. Larvae .5 to 1 in. in length. Feeds on Suleima helianthana young stem and head. Headless or damaged heads or large hole on stem near a leaf petiole is symptom. Sunflower midge Small (.1 in.) gnat with tiny (.1 in.) cream-colored larvae Contarinia schulzi laid when head is 1" in diameter. Brown spots at base of individual florets or absence of ray flowers, cupping of heads is symptom. Sunflower headclipping weevil Black weevil, about .25 in. long, causes head drop. Haplorynchites aeneus Sunflower beetle Adult is .25 in

Ökoloogia → Ökoloogia ja keskkonnakaitse1
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