{"id":3137,"date":"2019-10-31T00:11:05","date_gmt":"2019-10-31T07:11:05","guid":{"rendered":"https:\/\/depts.washington.edu\/hortlib\/pal\/pal-question-767\/"},"modified":"2023-08-08T13:19:07","modified_gmt":"2023-08-08T20:19:07","slug":"primroses-and-common-pests","status":"publish","type":"pal","link":"https:\/\/depts.washington.edu\/hortlib\/pal\/primroses-and-common-pests\/","title":{"rendered":"primroses and common pests"},"content":{"rendered":"<p><strong>I have grown primroses both in Seattle and in South Everett. The first time the plants looked like the leaves were being eaten, and then when I pulled one of the almost-eaten plants out of the pot, most of the roots were gone. When I cleaned out the pot, I found many little white grubs in the dirt. It happened again in my new location. I am mystified, as I grow them in pots on a second floor balcony. What could be causing this and is there a way to grow primroses without this happening?<\/strong><\/p>\n<p>I wonder if the problem is in the potting soil. Were you using the same batch each time? It might be worth experimenting with a new brand of potting soil to see if you have the same or different results.<\/p>\n<p>Also, you could try purchasing your plants from different sources. The ones you have now may have come to you from the nursery already infested.<\/p>\n<p>There are a number of pests that afflict Primula. Of the culprits listed on University of California, Davis&#8217;s <a href=\"http:\/\/www.ipm.ucdavis.edu\/PMG\/GARDEN\/FLOWERS\/primrose.html\">Integrated Pest Management<\/a> site, weevils might be a possibility, as their larvae (grubs) live in the soil. The recommended treatments include parasitic nematodes and trapping of adult weevils. Here is <a href=\"http:\/\/portal.ct.gov\/CAES\/Plant-Pest-Handbook\/pphP\/Primrose-Primula\">more<\/a> on this pest, from the Connecticut Agricultural Experiment Station.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>I have grown primroses both in Seattle and in South Everett. The first time the plants looked like the leaves were being eaten, and then when I pulled one of the almost-eaten plants out of the pot, most of the roots were gone. When I cleaned out the pot, I found many little white grubs in the dirt. It happened again in my new location. I am mystified, as I grow them in pots on a second floor balcony. What&#8230;<\/p>\n<div><a class=\"more-link\" href=\"https:\/\/depts.washington.edu\/hortlib\/pal\/primroses-and-common-pests\/\">Continue reading <span class=\"screen-reader-text\">primroses and common pests<\/span><\/a><\/div>\n","protected":false},"author":4,"featured_media":0,"menu_order":0,"template":"","keyword":[94,90],"class_list":["post-3137","pal","type-pal","status-publish","hentry","keyword-primula","keyword-root-weevils"],"acf":[],"_links":{"self":[{"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/pal\/3137"}],"collection":[{"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/pal"}],"about":[{"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/types\/pal"}],"author":[{"embeddable":true,"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/users\/4"}],"wp:attachment":[{"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/media?parent=3137"}],"wp:term":[{"taxonomy":"keyword","embeddable":true,"href":"https:\/\/depts.washington.edu\/hortlib\/wp-json\/wp\/v2\/keyword?post=3137"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}