Anais da Sociedade Entomológica do Brasil (1997) 26, 223-228

Régis S.S. dos Santos, Lúcia M.G. Diefenbach, Luiza R. Redaelli and Dirceu N. Gassen (1997)
Consumo Alimentar Comparativo de Larvas de Phytalus sanctipauli Blanch. (Coleoptera: Scarabaeidae)
[Comparative food intake of Phytalus sanctipauli Blanch. (Coleoptera: Scarabaeidae) larvae]
Anais da Sociedade Entomológica do Brasil 26 (2), 223-228
Abstract: Food intake of 3rd instar larvae of Phytalus sanctipauli Blanch. was studied in the laboratory. Individually reared insects were given newly emerged seedlings of oat (Avena sativa), corn (Zea mays) or wheat (Triticum aestivum), or the three species together. The amount (dry mass) respectively of roots and seeds ingested was larger for wheat (28.5 and 41.5 mg), lower for oat (16.4 and 2.0 mg) and intermediate (22.6 and 24.9 mg) for corn. Leaf intake was similar for oat (18.2 mg) and wheat (19.8 mg) and larger for corn (2.1 lmg). Considering the seedling, consumption was larger for wheat either offered singly (89.8 mg) or not (56.9 mg). Grubs fed on wheat (100.2 mg) and corn (102.2 mg) were heavier than those fed on oat (85.9 mg). The average number of seedlings damaged/grub was larger for wheat (27.4) and oat (24:9) when compared to corn (0.9).
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
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Database assignments for author(s): Luiza R. Redaelli

Research topic(s) for pests/diseases/weeds:
general biology - morphology - evolution
rearing/culturing/mass production

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Phytalus sanctipauli