Collection of Laws for Electronic Access YH KENYA [Subsidiary] FOURTH SCHEDULE—(Contd.) ADDITIONAL FIELD STANDARDS—(Contd.) Black leg (Erwinia spp) Severe virus disease (leafroll, Y-group virus, severe mosaic) Mild mosaic visible in the field Fusarium wilt, Verticillium wilt Nematodes (Meloidogyne spp. and Ditylechus) SS 0 2 0 0 0 PB 0 4 5 1 0 B 0 5 10 2 2 CI 0 10 13 — — C2 — 1 15 3 3 3. Inspection shall be done for the following weeds: Crop Wheat Barley Oats Triticale Weed Wild Oats (Avena fatua) Avena sterilis (Avena ludoviciana) Thorn apple (Datura stramonium) Tolerance Nil Nil Nil For tolerance of other weeds see 1 of this table. KEY: † No roguing ‡ Roguing is notifiable § No roguing on disease 4. Hybrid Seed Production (1) Maize: Detasselling of female plants shall be inspected at least 3 times during tasselling period. (i) If 1% or more of the female plants posses receptive silks and more than 1 per 100 of them are shedding pollen at any one inspection, visit or more than 2 per 100 cumulatively during 3 days of inspection (3 inspection visits) then the crop shall be rejected. (ii) The neighbouring seed crop adjacent to a rejected seed shall also be rejected if: (a) The female plants shedding pollen in the rejected field exceeds either 2 per 100 on any one inspection or 4 per 100 on a combination of 3 visits. (b) The failed crop shall have more than 2 per 1,000 off-type plants in its pollen parent. (c) The rejected neighbouring crop has more than 4 smutted plants per hectare. (iii) The neighbouring seed crop adjacent to a rejected crop shall not be rejected if isolation is in accordance with these regulations. (iv) All seed fields shall have eight guard rows round the seed field. (2) Sunflower: When 2% (basic and above) and 5% (certified) of the female plants have pollen receptive flowers, there should not be more than the number of off-type plant stated in the schedule and also KE011EN Plant Variety, Regulations (Ch. 326), 01/01/1975 (1991) page 22/53