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	1.	Reproductio of myzus persicae (sulz.) and tetranychus telarius (l.) on different chrysanthemum cultivars by Markkula, M Roukka, K [coaut.] Tiittanen, K [coaut.] Material type: Article Publication details: 1969 In: Annales Agriculturae Fenniae v. 8, p. 175-183 Availability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library (1)Call number: REP-9865. Place hold Log in to add tags Add to cart (remove)
	2.	Resistance of plants to the pea aphid acyrthosiphon pisum harris (hom., aphididae) I. Fecundity of the biotypes on different host plants by Markkula, M Roukka, K [coaut.] Material type: Article Publication details: 1970 In: Annales Agriculturae Fenniae v. 9, p. 127-132 Availability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library (1)Call number: REP-9867. Place hold Log in to add tags Add to cart (remove)
	3.	Resistance of plants to the pea aphid acyrthosiphon pisum harris (hom., aphididae) III. Fecundity on different pea varieties by Markkula, M Roukka, K [coaut.] Material type: Article Publication details: 1971 In: Annales Agriculturae Fenniae v. 10, p. 33-37 Availability: Items available for loan: CIMMYT Knowledge Center: John Woolston Library (1)Call number: REP-9868. Place hold Log in to add tags Add to cart (remove)

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