Acarologia (2000) 41, 317-320

T.K. Das, P.K. Sarkar, P.K. Dey and A.K. Somchoudhury (2000)
The chemical basis of resistance of pineapple plant to Dolichotetranychus floridanus Banks (Prostigmata: Tenuipalpidae)
Acarologia 41 (3), 317-320
Abstract: Various chemical principle of leaf (total nitrogen, phosphorus, potassium, calcium, magnesium, iron, copper, zinc, silicon, manganese, crude protein, phenol, vitamin C, acidity, lipid, chlorophyll, total sugar reducing and non-reducing sugar and moisture) varied significantly among five varieties of pineapple. Only two (zinc and silicon) showed positive relationship with population density of Dolichotetranychus floridanus: varieties like Queen (6.80 ppm.), Giant Kew (5.70 ppm.), Kew (4.50 ppm.).
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Dolichotetranychus floridanus	Pineapple (Ananas comosus)