130 Journal of the Department of Agriculture. 



Some explanation is necessary in connection with the possibility 

 of further infection indicated in the last column. There are only two 

 farms, namely, De Kroon No. 420 and Buifelspoort No. 668. on which 

 the disease is likely to recur to any extent; some infection may also he 

 found on Bokfontein No. 647 and Hartebeesthoek No. 524. but it is 

 not anticipated that any laro^e number of trees will be involved. 

 On a number of farms (6), Elandsdrift No. 284, Greylingspost No. 

 Ill, Eietfonteiu No. 431, Eoodepoort No. 2148, Schoonfrezicht No. 

 144, Yissershoek No. 45, it is very unlikely that canker will recur, 

 but as the diseased orchards have not been entirely destroyed it is 

 within the bounds of possibility that further infection may be found, 

 and these orchards are being- kept under strict surveillance. There are 

 twenty-three farms on which all diseased orchards have been destroyed, 

 and hence no further infection is possible; the sites of the orchards 

 which have been burned are, however, periodically inspected, as 

 canker is occasionally found on sucker shoots g^rowing" from pieces of 

 root left in the ground. In destroying" and removing- the trees it is 

 impossible to be certain that the roots are entirely destroyed. The 

 sucker shoots sometimes become infected from canker organisms in 

 the soil, where they can survive for a considerable time. 



Every possible precaution is being" taken to prevent fresh out- 

 breaks. No planting" of citrus trees is allowed in the quarantined area, 

 except by special permit [see Agrricultural Pests (Citrus Canker) Act, 

 1919, appended]. Permission to raise or plant citrus trees is only 

 given where the proposed orchard site is at a safe distance from an 

 infected area, and trees must be obtained from a nursery outside the 

 quarantined area. No sanction for raising nurseries in the quaran- 

 tined area is granted at present. 



Act (No. 10, 1919) to Amend the Agricultueal Pests Act, 1911, 



IN RESPECT OF LaND OR PlaNTS InFECTED WITH CiTRUS CaNKER. 



Be it enacted by the King's Most Excellency Majesty, the Senate 

 and tlie House of Assembly of the Union of South Africa, as follows : 



1. (1) Except with the. permission of the Minister of Agriculture, 

 no person shall, after the commencement of this Act, plant or raise 

 or keep any citrus plant — 



(a) on any land on which any citrus plant has, owing to the 

 presence of citrus canker, been destroyed on the authority 

 of the Minister of Agriculture under the powers of the 

 Agricultural Pests Act 1911 (Act No. 11, 1911) or on any 

 land adjacent to such land ; or 



(h) on any land within an area proclaimed or notified under the 

 said Act to be a quarantined or restricted area by reason 

 of the presence of citrus canker : 



But nothing in this section shall be construed as prohibiting the keep- 

 ing on any such land of plants existing- thereon on the eighth dav 

 of July, 1918. 



(2) Any person who contravenes the provisions of this section 

 shall be guilty of an offence and liable on conviction to the penalties 

 prescribed by section twenty-seven of the said Act. 



