Fitopatologia Brasileira (2002) 27, 186-192

Joseli S. Tatagiba, José R. Liberato, Laércio Zambolim, José A. Ventura and Hélcio Costa (2002)
Controle e condições climáticas favoráveis à antracnose do mamoeiro
[Control and favourable weather for anthracnose of papaya]
Fitopatologia Brasileira 27 (2), 186-192
Abstract: Anthracnose and stem-end rot (SER) are the main post harvest diseases of papaya (Carica papaya) in Brazil. The effectiveness of 11 treatments (mg.l^-1 a.i.) on the their control was evaluated: 1-chlorothalonil WP (1500); 2-chlorothalonil SC (2000); 3-chlorothalonil + copper oxychloride WP (875 + 1050); 4-thiofanate-metil + chlorothalonil WP (400 + 1000); 5- thiofanate-metil WP (700); 6-tolylfluanid WP (750); 7-tebuconazole EC (200); 8-triadimenol EC (250); 9-fluazinam SC (500); 10-iminoctadine F (300) and 11-unsprayed control. A trial was arranged in a completely randomized block design with four replications and eight plants / plot, using 'Improved Sunrise Solo Line 72/12', in Linhares-ES. From the beginning of flowering (March 1997) to March 1998, biweekly to monthlly sprays were applied. From September on, 12 harvests of nine fruits/plot were accomplished. Ten to 12 days after the harvest, the incidence of anthracnose and SER was evaluated and the severity of anthracnose was estimated visually using a scale from 0 to 4. The correlation between incidence and severity of anthracnose was high (r = 0,86). The use of fungicides did not reduce the incidence of SER. Except for treatments 7 and 8, the average incidence was reduced from 26,4 to 41,2% compared to unsprayed controls. On the third day of evaluation fungicides reduced the anthracnose incidence up to 73,6%. The highest anthracnose incidence and the lowest degree of fungicide effectiveness occurred between November and January 15^th, which correspond to the highest rain frequency (505 mm in 16 days).
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
(original language: Portuguese)
Full text of article

Research topic(s) for pests/diseases/weeds:
control - general

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Colletotrichum gloeosporioides	Papaya (Carica papaya)	Brazil (south)