VCR – Vegetable Crop Report – May 30th, 2024

Crop Updates

Carrots – Carrot weevils are active and laying eggs in early-seeded fields.

Potatoes – Planting is nearing completion with around 90% of the acres planted. If the weather cooperates, most growers are hoping to be finished planting the remaining fields by early-mid next week. For most of the province, any emergence issues will be starting to show. New for 2024 we have updated the Ontario Crop IPM to make it easier for you to identify problems in your crop. Not sure what an issue is? Use the identify tab to scroll and filter through pictures to narrow down any potential problems.

Potato Scout training is next Wednesday with both in-person and virtual spots available.

Weekly plug to participate in our soft rot/blackleg survey: Potato Bacterial Soft Rot Survey – ONvegetables

Rutabaga – The 1^st generation of cabbage maggot should at least be emerging now and in some regions damage will be showing up. In addition to Verimark at-planting, for 2024 growers will have 2 other products to use against cabbage maggot. These products are available through Emergency Use Registration and more details on rate, timing, max apps etc. can be found here: Cimegra® and Success® Insecticide labels temporarily expanded via Emergency Use Registration – ONvegetables

Pest Degree Day Forecasting

County	Carrot Rust Fly	Onion Maggot	Carrot Weevil	Aster Leafhopper	Tarnished Plant Bug	Cabbage Maggot	Seedcorn Maggot	European Corn Borer
THRESHOLD	329-395, 1399-1711	210-700, 1025-1515	138-156, 455+	128+	40+	314-398, 847-960, 1446-1604	200-350, 600-750, 1000-1150	See legend below
Bruce***	464	399	241	157	68	288	399	123
Essex*	724	647	444	334	191	506	647	284
Chatham-Kent*	652	579	391	291	158	448	579	243
Norfolk**	607	533	339	239	121	398	533	195
Huron***	538	468	288	194	96	343	468	154
Wellington Centre**	514	445	277	189	89	326	445	151
Wellington North**	499	433	267	182	88	317	433	145
Simcoe***	496	429	263	175	78	313	429	134
Durham***	544	474	297	204	99	350	474	164
Peterborough	498	430	263	174	79	314	430	137
Kemptville***	533	464	302	216	114	349	464	178
Sudbury***	348	299	180	119	54	215	299	92
Timiskaming***	343	296	181	121	57	215	296	95
Lambton**	624	554	366	265	146	424	554	220
Thunder Bay	256	208	98	53	12	128	208	35
Middlesex**	642	569	376	274	151	435	569	229
Renfrew	525	458	298	217	117	345	458	181