Add 4 independent seed brands: Latham + Stine + 1st Choice + Burrus (+623 varieties) (#17)

Co-authored-by: claude <claude@jpaul.io> Co-committed-by: claude <claude@jpaul.io>
2026-06-04 21:58:07 -04:00
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+# LH 5209 DV EZR
+
+- **Vendor:** Latham Hi-Tech Seeds (independent family-owned, Alexander, IA)
+- **Brand:** Latham Hi-Tech Seeds
+- **Crop:** Corn
+- **Relative maturity:** 102 days
+- **Trait(s):** 5222 EZR
+- **Source:** https://www.lathamseeds.com/products/lh-5209-5222-ezr/
+- **Rating scale:** numeric ratings ~1-9 where LOWER = BETTER (1 = best / most tolerant / most resistant); confirmed by cross-referencing Product Overview prose vs values (top-rated stalks/roots cluster 1.0-1.5, weak traits 3.0-3.5, none approach 9). Categorical values pass through verbatim (SCN source 'PI 88788', Phytophthora 'Rps 1k', Anthracnose 'ASR', 'Medium Tall', 'Flex'). NA/blank = not rated.
+- **Service area:** Latham dealer network — Upper Midwest (IA/MN/WI/IL/ND/SD/NE)
+
+---
+
+_This Agrisure Duracade Viptera™ E-Z Refuge® hybrid offers farmers a different tool to manage potential rootworm trait resistance across northern Iowa, southern Minnesota and Wisconsin. Medium populations are best suited for LH 5209 DV EZR with its flex-ear style, strong early vigor and fall health. LH 5209 DV EZR has above-average tar spot scores, as well._
+
+---
+
+## Agronomic Characteristics
+
+- **Flowering for Maturity:** Equal
+- **Early Vigor:** 2.0
+- **Stalk Strength:** 2.0
+- **Root Strength:** 1.5
+- **Stay Green:** 1.5
+- **Drydown:** 2.0
+- **Test Weight:** 3.0
+- **Drought Tolerance:** 3.0
+- **Foliar Fungicide:** 2.0
+- **Herbicide Sensitivity:** None Known
+- **Suggested Population:** 26,000-34,000
+- **Corn-on-Corn:** 2.5
+- **Ear Height:** Medium
+- **Ear Type:** Flex
+- **Number of Kernel Rows:** 18-20
+- **Cob Color:** Red
+- **Husk Cover:** Medium
+- **Shank Length:** Medium
+- **Leaf Angle:** Semi-Upright
+
+## Disease Ratings
+
+- **Goss’s Wilt:** 2.0
+- **Common Rust:** 2.0
+- **Northern Leaf Blight:** 2.0
+- **Eye Spot:** 1.5
+- **Gray Leaf Spot:** 2.0