See Manuel Cayon, "DA allots ;p102 million for Panama-disease control among banana growers: Business Mirror (28 April 2015), 102million-for-panamadisease-control-among-banana-growers). ~ Decision 17 G.R. Nos. 189185 & 189305 The menace of the Black Sigatoka disease cannot be taken lightly. The disease causes destruction of the plant by significantly reducing the leaf area, leading to premature ripening of the produce ·and resulting in yield losses of at least 50%.91 Due to its effects on banana export trading, the disease has emerged as a global concern that has
correspondingly forced banana producers to increase the use of chemical pesticides.92 Protectant fungicides such as Mancozeb, chlorothalonil and Propiconazole are applied to combat the disease.93 These agricultural chemicals are aerially applied by the respondents in the banana plantations within the jurisdiction of Davao City to arrest the proliferation of the disease. Considering that banana export plantations exist in vast monocultures, effective treatment of the Black Sigatoka disease is done by frequent aerial application of fungicides. Thisis an expensive practice because it requires permanent landing strips, facilities for the mixing and loading of fungicides, and high recurring expense of spray materials.94 The cost of aerial spraying accounts to 15-20% of the final retail price of the crop, making the technology essentially unavailable to small landholdings that are more vulnerable to the disease.9 5. Aerial spraying has become an agricultural practice in Davao City since the establishment of the banana plantations in 1960.96 Out of the 5,205 hectares of commercial plantations devoted to Cavendish banana being operated by the respondents in Davao City,97 around 1,800 hectares receive treatment through aerial application. These plantations are situated in Barangays Sirib, Manuel Guianga, Tamayong, Subasta Dacudao, Lasang, Mandug, Waan, Tigatto and Callawa,98 and are affected by the ban imposed by Ordinance No. 0309-07. The DTI has issued a statement to the effect that the ban against aerial spraying in banana plantations "is expected to kill the banana industry," affects the socio-economic development of the barangays hosting the affected plantations, and has a disastrous impact on export trading. The DTI has forecasted that the ban would discourage the entry of 91 Ploetz, Randy, "Black Sigatoka of Banana: The Most Important Disease of a Most Important Fruit," APS, 2001, , last accessed July 14, 2016 at 10:08 a.m. 92 en/ show/Another-major-step-in-better-disease-management-in-theglobal-banana-sector.htm, last accessed July 14, 2016 at 10:11 a.m. 93 Banana: Diseases, , last accessed July 14, 2016 at 10:15 a.m. 94 Ploetz, Randy, Black Sigatoka in Pesticide Outlook, Vol. 11, Issue 2000, , last accessed July 14, 2016 at 10:21 a.m. 95 Ploetz, Randy, "Black Sigatoka of Banana: The Most Important Disease of a Most
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Law, Davao City, Ordinance, Mindanao, Davao Region, Davao del Norte, aerial spraying